Tour to Neocene
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The basis of the chapter was written by Wovoka, a forum
member
Translated by João Vitor Coutinho
Edited by Tim Morris
In the Neocene, the Amazonian selva regained its positions
lost in the human epoch. Equatorial regions, favorable for the growth of evergreen
rainforests, have again become a place of abundance of life. Many species of
trees and shrubs, vines and herbaceous plants grow here, and this is one of
the centers of species diversity of life. Abundant rainfall and a warm climate
promote vigorous growth of vegetation, and woody plants form an extended canopy
that captures almost all of the sunlight, and only a small part of it reaches
the surface of the ground. Rivers cut through the dense forest canopy, and in
these places the sunlight reaches the ground, allowing the growth of small plants
– grasses and shrubs. Since the areas suitable for the growth of shrubs are
relatively small, between plants the serious competition takes place for the
opportunity to live in the most favorable places. In the eternal war between
plants for a place under the sun, a variety of means are used. Some plants quickly
overtake their neighbors in growth and shade them, others spread with the help
of root shoots, and the third ones use growth inhibitors to eliminate competitors.
Some winners in the struggle for existence are visible at first sight. Extensive
thickets of one shrub species stretched out on tree-free plots of land open
to the sun. They have an interesting appearance: among the monotonous gray-green
leaves of a rounded shape, flowers of very diverse shades develop: white, yellow,
red, pink, orange and purple. Their coloration changes over time depending on
the location of the inflorescences, their age and degree of maturity, so the
varied coloring only partially gives the impression of some kind of species
diversity. In fact, these thickets can sometimes be just a clone of only one
plant that appeared in this area several years ago and achieved success in the
struggle for existence. This plant species is polomiki lantana, the master of
conquest of living space. Its thickets are single-species and continuous, stretching
for tens of meters through the forest. The plant actively scours living space
for itself and is very reluctant to leave the occupied territories. With the
secretions of its roots, the plant kills the growth of competitors and even
oppresses larger neighbors. Seedlings of trees next to the roots of polomiki
lantana wither soon, and even in adult trees next to this shrub, a significant
part of the roots appeared too close to the thickets die off. But the plant
itself spreads actively, stretching its roots and branches in all directions.
The branches lie flat on the ground and take root easily, thanks to which, over
many years, a huge clone is formed from one plant, stretching for tens of meters.
Even herbivorous mammals cannot influence this plant with their activities,
although the largest rodent species – barocavia
– inhabits the tropical forests of South America in the Amazon and Hippolyte
basins; it is a monstrous “guinea pig”, which is the ecological analogue of
the hippos of the human era. In calm weather, even animals with a weak sense
of smell notice a sharp and very recognizable smell spreading from the green
parts of polomiki lantana. It is a signal: polomiki lantana is inedible for
most of the forest inhabitants. All parts of the plant contain a huge amount
of alkaloids, and this feature allows the plant to thrive. Large animals can,
at best, nibble off the top of one shoot in order to get rid of helminths with
the help of such a natural remedy. If any herbivorous mammal eats too much leaves,
it is fraught with severe liver damage leading to death.
Some animals are repelled by lantana, while others, on the contrary, are attracted
by it. Above the bushes, the air is ringing because of wingbeats of numerous
creatures: thousands of flying creatures gather here to taste the sweet nectar.
Despite the poisonousness of the roots and shoots of the plant, its nectar is
harmless, and a variety of creatures – hummingbirds and pollinating insects
– feed on it. Flowers on the same branch of a plant can have a different coloration.
The reason of it is hidden in the peculiarities of plant physiology – a pollinated
flower quickly fades and becomes unattractive to pollinators. At different stages
of flowering, polomiki lantana flowers attract different pollinators – it guarantees
more successful pollination.
After pollination, fruits arise not from every flower; many ovaries simply fall
off and rot on the ground. Unripe berries are protected from eating – they are
covered with bristly spines, which quickly fall off at the time of fruit ripening,
and ripe berries attract a significant number of forest dwellers. Numerous forest
birds, such as brightly colored parrots, feed on the dark purple berries of
polomiki lantana. Their flocks regularly descend into the thickets from the
forest canopy, and other forest dwellers find fruit-bearing polomiki bushes
by the sharp calls of these birds, heard hundreds of meters away.
Ground-dwelling mammals often come to feast on the berries of this shrub, although
they avoid eating its foliage and young shoots. But in the tropical forests
of South America, there is one beast that feeds not only on berries, but also
on flowers, leaves, and even lantana stems. Moreover, among herbivorous vertebrates,
only this one is able to feed on the greens of this plant. For other herbivorous
mammals and birds, this plant is extremely toxic, except for nectar and ripe
berries. However, in nature, no one adaptation guarantees its owner the absolute
protection.
Thickets of lantana shake and the crunch of branches, snorting and sniffing
are heard – a large beast, the size of a small bear, roams among the plants.
This is a creature of massive build, with short powerful paws, armed with thick
claws. The back of the animal is covered not only with wool, but also with numerous
thin quills that bristle if the animal hears a sharp sound or simply feels displeasure.
Near the ground, the animal’s long tail slaps along the bush branches. Its tip
is expanded and turned into a kind of “mace”, inside of which there are enlarged
vertebrae, and the spikes on the skin over this “mace” are larger and thicker
than on the body. From time to time, this animal sits down on its hind legs,
leaning on its tail, raises its head and chews on the shoots. At this time,
huge orange incisors are visible in the mouth of the beast – this is a rodent,
but very large. Its incisors are strong enough to cut through the thick branches
of a bush like a garden pruner. In itself, the large size of the rodent is not
unusual: South America is the kingdom of caviomorph rodents, and a large number
of specialized forms of rodents,
often reaching enormous sizes,
are present in local fauna. The diet of this animal is amazing: it includes
shoots of polomiki lantana, and it consumes this food in large quantities. An
animal that can feed on lantana shoots without harm to itself is a very large
lantana-eating porcupine, or myriyutherium.
In its physique, the beast resembles a giant sloth of the prehistoric era, adjusted
for size. It feeds sitting on the ground: it simply bends the branches of the
bush and pulls them towards itself with hook-shaped claws. These claws represent
a universal tool for this herbivore: they can be used to dig up roots and tubers,
bend and break branches of bushes, and when the beast is attacked by a predator,
they turn into a formidable weapon. The claws on the front paws of the animal
are so large that the rodent is “club-footed”, leaning at the walking on the
outer edge of the hand and bending its claws inward.
The physiology of this mammal is notable for its ability to neutralize the effects
of the poison of polomiki lantana. When myriyutherium eats this plant, it receives
huge portions of a strong poison. However, this does not harm it: the animal
has managed to use this poison by depositing it in its own fat and muscles.
Therefore, a predator who decides to eat myriyutherium can get fatal poisoning
if it eats too much meat. But even from a small amount of meat and fat of this
beast, many of the predators will feel very sick for several days. Only one
predatory species is able to eat the meat of myriyutherium without harm to itself
– it is the jaguarete, a local big cat. But even these predators prey on myrieutherium
only when thy lack any choice of prey. Therefore, the life of myriyutherians
in the South American selva proceeds relatively calmly. The only vital food
resource of this species is polomiki lantana. It grows in the forest not on
every step, but in places favorable for life of this plant, it grows in hundreds
of bushes, attracting porcupines. In addition to it, porcupines eat many other
types of plants, so in the absence of polomiki lantana, they will not remain
hungry. However, only the poison of this plant gives them protection, so the
beasts regularly visit the thickets known to them, improving their own chemical
protection.
Unlike many other selva plants, polomiki lantana forms extended single-species
thickets, where the shoots and seedlings of other plants feel uncomfortable
and quickly die. But lantana itself prospers, giving a lot of suckers. In various
places thickets of lantana move: this myriyutherium is not alone, and not far
from it several more of its congeners feed. Despite the fact that they can see
each other, these animals prefer to stay alone and do not interact with each
other. Their way of life and means of protection allow them existing successfully
outside the society of congeners, unlike primates, for example. This species
does not form breeding pairs, and the mating ritual is reduced to a primitive
display of strength and health by the male.
In one area of thickets, a myriyutherium female nibbles a bush of lantana. Her
congeners prefer to stay away from her: this is an adult strong female with
a cub, and she can easily attack any animal that she considers dangerous for
her offspring – even a representative of her own species. Raising cubs is the
only period of time in the life of myriyutherium when two congeners closely
communicate and feed together.
The female calmly feeds in the thickets, but this calmness is only outward.
When one adult male approached her inadvertently, the female stood up on her
hind legs and growled warningly, stretching forward the claws of her front paws
and baring her huge incisors. The cub has just been born and will need to spend
a lot of time with its mother before it grows to a size where it can protect
itself from enemies. Therefore, the parental instinct turns the myriyutherium
female into a hot-tempered and rather aggressive creature.
The cub of this female was born just a couple of weeks ago. Unlike most rodents,
which give birth to many blind and helpless cubs at once, New World caviomorph
rodents have chosen the opposite strategy: they give birth to very few cubs
(usually one or two), but their cubs are physically developed, sighted and covered
with hair. At his birth, this myriyutherium cub, Tisquesusa*, looked the same
way. At the age of a few hours, he already followed his mother, remembering
her appearance, voice and smell. At the second day of his life, the first quills
appeared in his fur, although he is not yet able to protect himself. Little
Tisquesusa actively learns to find food on his own – he watches which plants
his mother eats and smells the food in her mouth. He already knows how to dig
roots and confidently recognizes some of the plants his mother feeds on. However,
there is a lot of things in the world that he has yet to learn.
* In honor of one of the chiefs of the Chibcha Muisca Indians. |
Tisquesusa’s mother feeds in the polomiki lantana thickets.
Tisquesusa cannot yet bring himself to eat these shoots – they seem terribly
bitter to him, although the smell of the plant is attractive to him. While his
mother is sitting on her hind legs, leaning on her tail, the cub crept up to
her stomach and began to suck milk. This food is much better than the bitter
leaves of lantana – the cub’s body is not ready yet to accept and utilize large
portions of plant poisons. With age, the physiology of the Tisquesusa’s body
will be rebuilt, and the beast will devour the poisonous greens of polomiki
lantana with the same pleasure as its mother.
Having bitten off another branch, the female sniffed – she caught the scent
that was attractive to her. The eyesight of myriyutherium is not very sharp,
so she cannot see in all details the source of the smell, although it is literally
under her nose. Horned insects with elongated bodies about a centimeter in size
with a blue-green sheen crawl along the lantana branch. The female stumbled
upon a delicacy: amazing creatures – Amazonian treehoppers, or pokopoko – graze
on lantana. These sap-sucking insects equipped with a long proboscis are quite
different from many of their relatives – modestly colored small creatures that
disguise themselves for survival. Pokopokos are relatively large insects compared
to related species. Their coloration is bright – metallic green with a bluish
tint and intense luster.
These colorful creatures suck sap from young lantana shoots, while exuding sweet
honeydew, which attracts a number of animal species, including myriyutherians.
Pokopokos cause noticeable damage to the shrub: where their colonies stay, the
foliage of polomiki lantana shrivels and withers, and the flowers fall off without
producing fruits. Pokopokos intensively suck plant sap, inhibiting the growth
of shoots, and pass it through their small bodies. The excess sugar is regularly
secreted by insects, and their sweet secretions adhere to the bark on the shoots
and gleam in the sun with their smooth surface. Pokopokos belong to rare insects
that can feed on polomiki lantana without harming themselves. Passing through
themselves large amounts of plant sap, these insects accumulate a large amount
of plant poisons, and their bright and catchy coloring warns a possible enemy
that they are inedible. But this warning stops not all their enemies.
For the myriyutherians, pokopokos represent a real delicacy. Having found their
colony, the myriyutherium female began to gnaw the leaves and stems right along
with the isects keeping on them. With a soft rumbling, she called her young
cub to eat this rare forest delicacy too. Tisquesusa does not want to eat lantana
leaves, but willingly licks off the pokopoko colony from the shoots, sniffing
and snorting with pleasure. The taste of the pokopoko’s secretions is somewhat
unusual, but sweet, and the cub likes it. Under the watchful eyes of his mother,
he learns another of many lessons – this time a pleasant one. When licking a
branch, baby Tisquesusa remembers the appearance of pokopokos and the smell
of their secretions. But he will not have an opportunity to regale himself for
too long.
A black wasp is hovering in the air above the pair of myriyutheres, and its
body is slightly gleaming in the sunlight. When it hovers in the air, it is
noticeable that it is surrounded by a pink cloud – it has red spots at the tips
of its wings, and in a flying insect they turn into a pink halo around its body.
The wasp is not alone: in a minute another one appears next to it. The smell
of the disturbed pokopoko treehoppers causes these insects to get together,
and soon many wasps are flying over Tisquesusa and his mother. They are aggressive
and prepare to teach the young myriyutherium another lesson – no treat is free.
The black wasps quickly swarm over the myriyutheres, which carelessly devour
the pokopoko treehoppers and their sweet secretions. These massive porcupines,
covered with quills and thick hair, look well protected from wasp stings, but
they still have weak spots on their bodies, and wasps get to them sooner or
later. The wasps hovering in front of the eyes of the female porcupine irritate
her, and she waves her front paws away. Sudden movements anger the wasps, and
they rush to attack. Many of them crawl in the fur of the rodent, trying to
get to the skin, but some wasps sting the myriyutherium female in her eyes and
nose, causing her to shake her head and growl in pain.
The cub received several stings at once in the first minutes of the attack.
His wool is shorter and his skin is thinner, making it much easier for wasp
stings to find a target. Feeling the pain from the wasp venom, Tisquesusa whimpered
and ran away. However, he sees that his mother is fighting some kind of opponent,
although he does not notice the enemy himself – Tisquesusa is still too small
and inexperienced to associate the pain from the stings with the appearance
of insects from which his mother fights off. But he feels the danger and tries
to the best of his ability to scare the small enemies. Tisquesusa raised himself
on all fours, arching his back, fluffing his hair and spreading his quills,
but such a display can hardly frighten the many wasps attacking in a swarm.
Despite the menacing posture and the waving of his short tail, Tisquesusa received
several more stings and rushed into the thicket, whining piteously. His mother
also retreated. Wasps have once again proved that they are able to rout an enemy
many times bigger the size of the wasp. The myriyutherium female suffered greatly
from the wasps: she had one eyelid swollen and her nose hurts a lot, suffered
from several stings at once. Moreover, one wasp managed to sting her right in
the nostril, and the myriyutherium female sneezes and sniffs, trying to get
rid of the unpleasant burning sensation. She turned and left the polomiki lantana
thickets, and Tisquesusa rushed after her.
The pokopoko colony is under reliable protection: a whole army of black tapiyucan
wasps stands guard over their safety. These wasps, also known as farmer wasps,
jealously protect the treehoppers from any enemies, including such large ones
as myriyutherians. Workers of tapiyucan wasps are constantly on duty around
the pokopoko colonies, and their stings force to retreat the spiders and predatory
insects, that have decided to attack the slowly-moving pokopokos. The nest of
the wasps themselves is built in a tree several meters above the ground, and
their own larvae grow in safety.
Tapiyucan workers are one of the frequent visitors to polomiki lantana flowers.
They are easy to recognize among other insects – the body of the tapiyucan worker
wasp is black, smooth and shiny, and the red tips of the wings stand out brightly
against this background. Worker wasps diligently harvest nectar to feed the
relatives left in the nest and for the queens on which the reproduction of the
colony depends. The tapiyucan colony has several fertile queens, and it guarantees
the reproduction of the colony even after it is plundered by large enemies having
the taste for insects and their larvae.
Tapiyucan workers are not only nectar collectors and warriors, but also skilled
hunters. For their larvae, these wasps gather small insects, hunting, among
other things, on lantana flowers. They chew their prey to the condition of minced
meat, throwing out its stiff legs, parts of the shell and inedible wings. Pokopoko
treehoppers, accumulating lantana poison in their tissues, are deadly poisonous
to wasp larvae, so they do not become their prey. However, they work as living
filters for the poisonous lantana sap, and their honeydew – sweet sugary secretions
– is completely harmless and is one of the main components of the diet of adult
tapiyucan wasps. Wasps regularly visit the pokopoko colonies, and workers armed
with stings and ready to defend their wards are always present there. These
sedentary sucking insects always have a lot of enemies – they are eaten by predatory
insects, ticks and spiders, and microscopic fungi grow on sweet secretions and
can easily infect the pokopokos. There are also parasitic fungi that grow in
the tissues of these insects. Therefore, tapiyucan workers always have enough
work to do in the pokopoko colonies: they kill and drive away the enemies of
these insects, clean the pokopokos from dirt and fungus, and even treat them
with their saliva as if they were their own larvae to protect their body coverings
from the fungus. As a reward for protection and care, the wasps receive sweet
honeydew from the treehoppers in an amount sufficient to feed the wasp colony.
The role of the tapiyucan in the life of pokopokos is not limited to caring
for the insects only. The wasps also guard and cultivate the polomiki lantana
plants, preventing the growth of other plants that the pokopokos cannot feed
on and that could interfere with the growth of the polomiki lantana. Some plant
species, which are fast growing and resistant to lantana root secretions, are
still able to compete with it and even supplant it from suitable places for
life, however, tapiyucan wasps regularly descend to the forest floor and crawl
in lantana thickets. They find by smell and gnaw with their mandibles the seedlings
and suckers of other plant species, making room for the unhindered settlement
of the shrub. In addition, wasps find fallen overripe fruits of polomiki lantana
on the ground. They are rich in sugar and also non-poisonous, therefore wasps
willingly eat them. Small seeds of polomiki lantana can settle by sticking to
the integument of insects that eat the berries. Wasps easily clean them off,
but by this point they can fly far enough from the thickets, and there is a
high probability that the seed of polomiki will germinate in a new place. In
addition to wasps, lantana seeds are often carried by beetles, which like the
taste of rotten berries, on their body covers. Thanks to the hard shell, they
can afford to ignore the tapiyucan wasps crawling nearby and devour the berries,
regardless of the interests of the wasps. Insects carry the seeds of polomiki
lantana quite far from the thickets of the parental plant, but in the first
months of life, the lantana seedling will have to fight for a place in the sun:
a too weak and tender seedling grows from a small seed, which develops for a
long time before it gets strong enough to compete on equal terms with other
plants. And the care of tapiyucan wasps helps such seedlings to survive – but
only where the thickets of lantana already exist and a nest of these wasps is
arranged.
…The wasps successfully drove away the myriyutherium female with the cub from
the thickets – the tactics of collective defense once again worked flawlessly.
When the enemy was put to flight and the threat of the pokopoko colony was over,
the worker wasps returned to peaceful labor. Some of the wasps returned to the
nest, but many of them shot in every direction through the lantana thickets
in search of surviving pokopoko colonies. Wasps perfectly remember the location
of the colonies they patronize and quickly find them. Landing on lantana shoots,
worker wasps crawl across the colony of pokopoko treehoppers, sniffing and feeling
their pets with their antennae. Almost all treehopper colonies are safe and
unharmed, except for one, which was found by the myriyutherium female. Before
the wasps came to the defense of the colony, the porcupines managed to eat a
lot of pokopokos, but some of the insects managed to survive. The porcupines
also bit off several branches, and now part of the colony can be seen from the
side. Pokopokos survived this catastrophe crawl uneasily along the branches,
choosing new places to feed somewhere in the shade of the foliage, where they
will not be noticed by predators. They move slowly – pokopoko has very short
walking legs, with which it is more convenient to cling to a branch and stay
still, although they can jump with the help of a strong rear pair of legs. Worker
wasps crawl cautiously between alerted pokopokos, licking them and touching
them with their antennae. The touch of the wasp antennae calms pokopokos, and
they gradually spread along the branches of the lantana, choosing secluded places
for feeding. And the worker wasps, while tending to the pokopokos, update their
memory map of the location of their colonies. Within half an hour after repulsing
the invasion of myriyutherium, the first pokopokos thrusted their proboscises
into the vessels of polomiki lantana stalks and began to secrete sweet honeydew
drops, responding to the touch of the antennas of the tapiyukan wasps. Order
has been restored, and the life of the colony continues.
Mother leads Tisquesusa away from this dangerous place. She walks slowly along
the edge of the thickets of polomiki lantana, and Tisquesusa barely keeps up
with her with his short legs. Both animals experience severe pain from wasp
venom – the stung places are swollen and respond with pain to every movement
or touch. The adult female endures this pain in silence – she has encountered
wasps and bees that live in the selva more than once. There are many species
of stinging insects here, and
every animal has to test their weapons sooner or later. For baby Tisquesusa,
this is the first experience, and he reacts very sharply to painful sensations
– he whines, sniffs and itches. From time to time the female stops, calls Tisquesusa
to her and licks his stung muzzle. This is the only thing she can do for him:
she cannot take away the pain of wasp venom, which should go away on its own.
The pain of wasp stings makes them concentrate on their own sensations for a
while and forget about caution for a while. And the world around them almost
immediately reminds them that it is dangerous to do so.
Not only myriyutheres and insects feed on polomiki berries – this delicacy attracts
many eaters to poisonous thickets. Small birds usually feed in the lantana bushes,
taking off when the clumsy myriyutherium is searching for fresh tasty shoots
of the plant. From the forest canopy parrots, the famous forest gourmets, descend
here. A frequent visitor of the thickets of polomiki lantana is the kurekure
parrot – a noisy green bird with yellow flight feathers. These birds can be
heard from afar – they constantly communicate with each other with loud hoarse
voices. Many eaters of lantana berries are more secretive. Rodents and small
possums scurry under the bushes; they also like these berries, especially overripe,
fallen and fermented ones. Small doses of alcohol make small mammals a little
less agile and cautious than usual, but a meeting with myriyutherium does not
pose a danger to them – these porcupines do not prey on other animals. But larger
creatures can also feed in the thickets, including those who will not refuse
fresh meat in addition to berries.
An animal the size of a large bear appeared as if from nowhere. While the porcupines
walked along the edge of the thickets, this one ate lantana berries, standing
on all fours in the bushes, and the foliage completely hid him. He got too involved
in the search and devouring of berries, so it did not immediately notice the
approach of the porcupines. When a dry twig crunched under the paws of the myriyutherium
female, he instantly returned to reality. Not trying to figure out who bothered
him, the beast instantly rose to its hind legs and bared its teeth, ready to
meet any enemy fully armed. Standing on his hind legs, he reaches almost two
meters in height – this is an imposing and dangerous opponent for anyone who
dares to attack him. He has a stocky, muscular body, a huge head, and clawed
feet. Unlike the myriyutherium, he does not refuse to diversify his diet with
the meat of small animals – large sharp canines grow in his jaws. However, now
he was feasting on polomiki lantana berries, and the hair around his lips stick
together from the sweet berry juice. This is macrokupara, a descendant of the
small tree-climbing kinkajou raccoon of the human era. In the process of evolution,
this beast reached the size of a bear and switched to a terrestrial way of life.
It is an omnivorous animal, and the wealth of terrestrial megafauna in the selva
of the Neocene epoch allows the macrokupara to diversify its diet with meat
of varying degrees of freshness – it eats both fresh, still warm meat and carrion
affected by decomposition with equal pleasure. In addition, he is quite capable
of eating a baby myriyutherium, whose meat has not yet become too toxic. However,
an adult myriyutherium is inedible for him, but young cubs still feeding on
mothermilk, may appear a dainty for this predator.
The silent scene of the meeting between the two species of beasts lasted a matter
of seconds: with a yelp of fear, Tisquesusa rushed away before his mother could
stand between him and the macrokupara. He is too small, and the sudden appearance
of such a huge beast very close to him greatly frightened him. Without any hesitation,
macrokupara rushed after him – this beast is omnivorous, and his menu often
depends on the ability to quickly navigate the environment and make decisions.
Quickly assessing his chances and the distance between himself and the myriyutherium
cub, he decided to try to get a tasty morsel for a rich side dish to go with
the berries. And the female myriyutherium heard the call of the cub and rushed
to his aid – the presence of the macrokupara does not frighten her.
Tisquesusa rushes through the forest, stumbling over the roots and hearing behind
him the heavy steps of an unknown but terrible beast. The young porcupine has
already begun to get tired, and steps behind him are heard closer and closer.
He hears the breathing of two animals behind him – the loud and hoarse breath
of the monster, and the quieter and more distant one of his mother. She rushes
to help, but Tisquesusa’s strength leaves him, and the macrokupara is about
to overtake the cub.
And at that moment, when the macrokupara almost caught up with the myriyutherium
cub, the female made a dash forward with her last strength and grabbed the predator’s
hind paw with her claws. The macrokupara’s claws tore at the wood litter just
a few centimeters away from Tisquesusa, who whined plaintively. And his mother
responded to his voice with a ferocious throaty growl. With her claws of her
front paws out in front of her, her powerful incisors bared and her fur and
quills standing up, she approached the macrokupara. Moaning in pain, the macrokupara
turned its muzzle to the myriyutherium female. He tried to stand on his hind
legs to appear bigger and scarier, but due to his weight an unbearable pain
pierced his wounded paw, and he sank down on all four paws. Baring his teeth,
he tries to keep his face to the myriyutherium female, barking every time she
tries to take a step towards him. The two opponents mill about among the trees
in a terrible dance, taking turns trying to scare and force each other to retreat.
The macrokupara tries to turn the myriyutherium female to retreat with lunges
with bared teeth and strikes with a clawed paw, however, in response, the female
porcupine only exposes her sides to him; quills grow densely there, and the
predator is forced to limit himself to only a display of strength, scratching
and throwing the wood litter to the sides.
Scared Tisquesusa hid among the roots of a tree and watches the battle between
his mother and an unfamiliar monster. He has already managed to associate the
image of this animal with danger in his memory, and in the future he will be
careful, sensing cues of its presence.
The myriyutherium female was the first to decide to interrupt this unnecessary
duel. She dropped to all fours and swung her prickly mace-tail, intending to
strike the predator in the muzzle or in the shoulder. The macrokupara managed
to dodge this blow, stepping sideways in time – such a blow could sink many
quills into his body, and quite possibly, an eye could be damaged. The predator
does not want to tempt his fate, and the only thing he needs is to leave the
battlefield in time. He is no longer going to frighten the myriyutherium female
with sharp claws or teeth: his wounded paw hurts and bleeds badly. The myriyutherium
female had managed to inflict a serious wound on him: the muscles on the hind
leg of the macrokupara are partially torn apart by her claws. The predator realized
that it was more expensive to mess with the female porcupine protecting her
cub, and prudently retreated, giving the porcupine family an opportunity to
unite happily.
The fight with the myriyutherium female was costly for the macrokupara – the
beast was seriously injured, and now it is limping. An attempt to step on a
wounded paw responds with acute pain, and the beast is forced to move actually
on three legs. It lost the ability to move quickly for a long time, and now
he’ll limp on his hind leg for the rest of his life, even if he’s lucky and
the wound heals without infection. For a predator living solely by hunting,
such a wound would mean a death sentence. However, the macrokupara is not a
specialized predator, but an omnivore; moreover, it is not fussy. A significant
part of his diet is plant foods, and meat goes to the mammal only if it manages
to get it easily and quickly. Now, after being wounded, he will have to survive
for a while, forgetting about fresh meat and eating plants, invertebrates and
carrion. Omnivorousness will be his salvation.
Myriyutherians also have a very varied diet, in which polomiki lantana shoots
are not the only, or even the main dish, but just a necessary addition to the
rest of the food. While Tisquesusa is small, he does not like the taste of lantana
shoots, and he prefers to eat other herbs, as well as starchy rhizomes and tubers
of herbs. When the mother wanders through the forest in search of food, the
little Tisquesusa tastes what she eats and imitates her movements, trying to
get food on his own. He grows rapidly, and every day improves his skills in
obtaining food. Someday he will be provided for by his mother, for the last
time, and he will have to take care of his own food for the rest of his days.
The mother guides Tisquesusa around a certain territory, which she considers
her own. From time to time, she tears the bark on tree trunks with her claws
and urinates and defecates profusely nearby, trying to leave as much smell as
possible near her mark. By such smell marks, others of her species will be able
to determine her sex, age and physiological condition – this is a kind of message
for relatives, not very informative, but quite understandable to any newcomer
to the territory of this female. Tisquesusa also leaves its small marks next
to the mother’s ones and his scent will also be recognized and taken into account.
Once, while wandering through the forest, Tisquesusa’s mother rumbled warningly
for no apparent reason. Tisquesusa knows perfectly well what this signal means,
so he ran up to his mother and took his place at her side. The voices of forest
birds sound the same as before, but the female clearly feels the presence of
another animal. After sniffing the ground and taking a few steps, she discovered
the cause of her anxiety: the female found a carelessly dug-in hole in the forest
litter, in which there is droppings that emanate a frightening smell. Smelling
it, the female involuntarily bares her teeth and raises her quills: this is
the smell of a predator, much more dangerous than the macrokupara – one of the
few creatures that can purposefully hunt myriyutherians and kill them for food.
Tisquesusa sees this behavior of his mother for the first time, therefore, he
does not understand the reasons for her anxiety, however, he diligently copies
her movements – he sniffs the droppings of an animal unknown to him so far,
remembers its smell and diligently bristles his quills, which have already noticeably
grown since his birth. With such quills as Tisquesusa has, he is no longer afraid
of some small predators, although they are unlikely to stop a large animal.
Myriyutherians are large herbivorous mammals, representatives of the group of
caviomorph rodents. Their close and distant relatives often reach a very solid
weight of tens and hundreds of kilograms, and in some cases even up to some
tons. However, these are herbivorous animals standing at one of the lower levels
of the food pyramid of the ecosystem. In the South American selva of the Neocene
epoch there are predators capable of preying on many of these herbivores, and
the hunter can appear in any guise, sometimes even in the most unexpected one.
In the process of settling the recovering tropical forests of the early Neocene,
evolution seemed to be playing some kind of game of a planetary scale, shuffling
the cards and handing them out in a bizarre way. As a result, newly formed ecological
niches appeared filled by the creatures of the most improbable appearance.
Looking at some creatures, it is difficult to imagine them as predators with
the sense organs that they have. However, one of the predators of the selva
is able to get its own food, being almost completely blind. It has no legs and
is too slow to chase its prey. It almost never leaves its hiding place. But
on the other hand, it knows how to wait, but having got a chance, it does not
miss it – it is very difficult to escape from its jaws.
Tisquesusa is searching for food with his mother. He has already grown up and
does not suffer from a lack of appetite. Therefore, the mother shares food with
him less and less often, although she does not refuse him in her support and
protection. When she dug up a plant with starchy, nutritious tubers from the
ground, she simply pushed Tisquesusa away without any sound, leaving him to
search for food on his own. Having whimpered a little as a sign of displeasure,
the juvenile moved a few steps away and found several more plants of the same
kind. He began to dig out one of them, growing from the edge. After a few strokes
of his claws, a succulent tuber appeared on the surface; Tisquesusa happily
bit off almost half of it and began to chew.
The faint tremors of the ground under Tisquesusa’s feet were felt by the creature
curled up under the forest floor. It has been patiently waiting for prey for
the past couple of days, and now the long passive wait seems to be over. This
hunter reaches a huge size – over three meters in length. It is actually blind,
but accurately tracks the location of possible prey by ground vibration and
smell. By indirect signs, the hunter can determine the size of the prey and
decide whether to attack it. The soft footsteps of Tisquesusa tell the hunter
that this is a relatively small creature and can be dealt with. The primitive
brain gave the command, and the long smooth blue-violet body straightened, throwing
forward a flat, hard head with strong jaws. The predator’s calculation turned
out to be accurate, and the jaws seized Tisquesusa’s hind leg. The young myriyutherium
squealed in pain, and a thick long body, glistening with wet skin, pulled him
into the bushes, where this hunter made a hiding place for itself.
Tisquesusa was attacked by an unusual predator of the selva – a huge mboi-tata
caecilian, one of the largest amphibians of Neocene. It is inferior in weight
to the gluttonous swamper
from the Siberian swamps, but it can exceed it in length. Like the gluttonous
swamper, the mboi-tata is a predator. Its jaws close tightly, and Tisquesusa
has almost no chance to escape, and the giant amphibian pulls him into its hole.
His mother reacted to Tisquesusa’s voice instantly. Groaning menacingly, she
rushed to aid him, ready to attack any enemy. Feeling the ground shake under
her feet, the caecilian hurried to protect itself. Its jaws loosened, and Tisquesusa,
limping slightly in pain, ran away. The mother pushed him away from the dangerous
animal and led him away, and the huge caecilian hurriedly backed into its shelter.
Although it is a predator, it is quite vulnerable in itself, therefore, in the
presence of large animals, it generally prefers not to appear on the surface
of the ground.
The entrance to the mboi-tata shelter is a deep, almost vertical hole in which
the animal is fixed with the rear end of its body. This is a relatively passive
predator, which almost never leaves its hole and catches only those animals
that appear nearby themselves and which can be dragged into the hole. At a depth
of almost two meters, the hole turns into a pitcher-shaped extension, where
the amphibian, completely hidden in the hole, is able to curl up. In such a
hole, the female raises her offspring, and such a shelter can exist for several
seasons in a row if it is not destroyed by a flood. Digging out such a hole
is a difficult task for a ground-dwelling predator, if it decides to hunt this
animal. And on the surface, this gigantic amphibian can only be accidentally
taken by surprise. Besides, mboi-tata very carefully hides the signs of its
presence. There are no other exits in its hole, and the amphibian maintains
cleanliness in a special way. It’s able to delay emptying its intestines for
several days in a row, and on the eve of the next rain, it simply sticks out
the back end of its body and defecates, spraying a jet of its feces far to the
side. The rain washes away traces of its presence, and the shelter of the animal
remains clean inside. The secretiveness of the mboi-tata is partly a necessary
measure: by nature, the animal is an amphibian, and its skin loses moisture
easily. And inside the hole, the humidity level optimal for the integument of
the animal is maintained by itself.
Tisquesusa was more frightened than hurt from the attack of the mboi-tata: his
skin was only scratched by its teeth, there are several bruises, and blood oozes
from small wounds from the teeth of the amphibian, appearing as stains on his
coat. Most importantly, the muscles and tendons remained intact, so in just
a few days he will fully recover. While the wounds are fresh, the cub whines
in pain. Hearing his voice, his mother stopped, scooped Tisquesusa up to her
with her front paws, and began to lick his wounds carefully. This is not only
a necessary hygiene procedure, but also a gesture of strengthening the bond
between mother and cub: by taking care of him, the mother gives him confidence
that he can count on her help and support. The meeting with the huge amphibian
is an extra reminder of the need to be careful if you live in the selva.
Meeting with a predator is a test for any living creature, but it can be avoided
with a certain amount of caution, the sharpness of the senses, and a certain
amount of luck. But there are tests that nature itself presents, and which no
one can avoid.
In a tropical climate, there is no summer and winter, as in areas of temperate
and cold climates. Instead, the tropical zone has wet and dry seasons. The concept
of “dry season” in this case is arbitrary – at this time, a little less amount
of the rain falls in the given area, and the rivers have time to gather rainwater
and remove it into the ocean. During the wet season, so much rain falls on the
selva that the rivers simply overflow their banks and flood vast expanses of
the rainforest, turning the life of its inhabitants into one big test of resilience.
The first flood in the short life of Tisquesusa began quite ordinarily. It’s
just that every next day the rain was heavier and longer than usual, and he
had to hide from the jets of water from the sky under the body of his mother
for longer, warming himself with her body heat. Wet wool creates an unpleasant
sensation, therefore, after wandering in the rain in the early days of the wet
season, Tisquesusa quickly got wet to the last single hair. To get rid of the
touch of wool unpleasantly sticking to the body, he shakes himself, but this
actually does not help. Therefore, pressing the quills to the body, he hides
under his mother’s side and warms himself, although she has to somehow endure
a touch of wet trembling cub at her side. Tisquesusa is too young, and such
long rains are new to him. He just has no idea how much water can be around.
On the contrary, his mother had gone through numerous floods and understands
clearly, what test they will have to pass in the near future.
Due to heavy rains, the river overflows its banks and floods the forest, and
its level rises every day. Herbaceous plants of the rainforest endure such a
test with relative success – many of them are able to withstand flooding and
grow for several weeks under water. Other plants are found only in places where
the waters of the river do not reach, or keep as little as possible – for example,
polomiki lantana is one of such plants, and this circumstance does not allow
it to grow too actively in the forest. Unlike plants, terrestrial animals are
able to move, and during floods they rush to higher ground, and even have to
climb trees, waiting for the flood to end. In such havens, friends and foes
often meet face to face.
During the flood, the myriyutherium female and cub appeared on an islet, but
it is too low, and the water level continues to rise. In the evening, Tisquesusa
searched for plant tubers under the supervision of his mother and managed to
get enough food to go to sleep full. During the night, the water in the river
continued to rise, and the area of the islet decreased rapidly. By morning Tisquesusa
did not recognize the surrounding area. He and his mother slept on a hill, and
in the morning the land area remaining with them amounted to only a few tens
of square meters. A significant part of the vegetation disappeared under the
water, and in any direction it was possible to walk a few steps only – and the
water splashed farther. In such a shelter, one cannot survive the flood – the
female with the cub does not have enough food, and the islet itself becomes
smaller and smaller every hour. They need to go somewhere else and Tisquesusa
will have to swim for the first time in his life. Before that, he only came
across small forest rivers, through which even he could wade. But now he faces
a serious test of viability.
Tisquesusa walked to the water’s edge. Previously, he was not afraid to cross
small streams, but now he has a vast expanse of water in front of him. He sniffed
the water, and then dipped his paw into it, but immediately pulled it back,
as if he was afraid of something. He is frightened by the unknown – the unusualness
of what is happening and its difference from everything that he knew before.
His mother is not surprised by this amount of water – she has already experienced
more than one flood, and knows what to do. The cub will have to learn by imitating
his mother.
The myriyutherium female is also afraid of large expanses of water – this is
not her native element, and predators can be found in the water, dangerous even
for an adult myriyutherium. However, she has no choice: the water will rise
higher all the same, and their shelter will disappear. So she took a few steps
and entered the water resolutely. After a few more steps, the female’s feet
already do not touch the bottom, and she swam, waving her paws alternately.
Tisquesusa is afraid to enter the water, so he hesitates. He clumsily tramples
near the water, enters it, but immediately gets out onto the shore. But the
female does not wait for him – she has chosen the direction towards the nearest
hill, and now she is swimming there. Tisquesusa is still too young to survive
alone, so parting with his mother is like death for him now. His bond with his
mother is still too strong – stronger than his fear of water. Therefore, after
hesitating for a few seconds, Tisquesusa entered the water and swam. He has
never done this before, but he simply rakes his paws, moving them in the same
order as when walking. Thanks to good nutrition, he has accumulated a layer
of fat under the skin that keeps him on the surface of the water. The hardest
thing was to keep the heavy head above the water, but it is balanced partly
by the tail. However, Tisquesusa inhaled water into his nostrils for some times
and sneezed, but he learned to keep his head in proper position very soon.
Hearing the sneezing of her cub, the mother slowed down and waited for him,
just swaying on the surface of the water among the trees flooded by the river.
Seeing that the mother had stopped, Tisquesusa began to row faster with his
paws, and caught up with her soon. He buried his nose in the wet matted fur
on his mother’s side, inhaling with pleasure her scent mixed with the smell
of river water alien to him. And now he will not lag behind her anyway. His
mother is the only thing he has, and Tisquesusa must learn from her how to behave
in such an unusual environment. Mother has experienced river floods many times,
so she knows the location of hills on her territory, where it is possible to
wait out the flood, and simply swims to one of them. An adult female is confident
in her abilities, but for a cub, this journey along the river is a rather difficult
test: he swims after his mother, keeping up with difficulty. Previously, he
did not have to experience such exertions – walking on solid ground is much
easier and more familiar. However, the selva is a place where floods often occur,
so Tisquesusa must be able to swim for a long time if he wants to survive. While
he is small and weak, he can expect for the help of his mother. The tired Tisquesusa
whimpered plaintively, and the mother, hearing this signal, slowed down. Tisquesusa
swam up to her and delicately grabbed with his teeth the quills growing on the
mother’s side. He relaxed his wobbly, tired paws and let them rest while his
mother slowly swam forward, pulling him in tow.
They did not have to swim very long, but even an hour in the water greatly tired
Tisquesusa. The mother remembers well the location of the saving hills on her
territory and unmistakably swam to the right place. She gladly climbed ashore
and walked on the ground – hard, but wet from the rain. The forest floor absorbs
rainwater like a sponge, so with every step, water squishies under the paws
of the myriyutherium female. However, it’s better than swimming and risking
to fall prey of the monsters that the water hides.
Tisquesusa followed his mother ashore. The feel of the ground under his feet
gave him a surge of joy, and the cub began to bounce clumsily around the mother,
tail up. However, the mother does not share the joy of Tisquesusa. She looks
around anxiously and sniffs the wet forest floor. During floods, large land
animals gather on such islands, and it is not known who your neighbor may be.
Most often this is an animal of the same species, and this is a more or less
acceptable scenario. Myriyuterians are not social, but they treat each other
without excessive aggression, however, during a flood, it is unpredictable what
can be expected from such meeting of congeners – the animals are stressed, so
their behavior can be completely unpredictable.
While exploring the area, Tisquesusa’s mother found a pile of droppings – an
important find, as it indicates the presence of relatives. The dung is clearly
left a long time ago: it is already soaked from the rain, but its smell is still
distinct enough, and the myriyutherium female sniffs it. By smell, she determined
that this beast was not familiar to her – during floods, individuals who had
not encountered each other before could turn out to be neighbors. Therefore,
the female is anxious: she sniffs the air and rumbles deeply, as if warning
an invisible neighbor that it is better for it not to approach her. Tisquesusa
still hardly understands this behavior of the mother, but her anxiety is transmitted
to the cub, and Tisquesusa diligently copies the behavior of the mother, bristling
his small quills.
The mother led Tisquesusa away from the water. The animals move forward slowly
and cautiously. Under the feet of porcupines, lizards and snakes writhe – these
reptiles also escape the water on the hills. Therefore, the female carefully
takes literally every step – now there is a risk of accidentally stepping on
a poisonous snake, and neither the mother nor the cub needs this. Adult myriyutherians
themselves are literally saturated with poison, and the metabolism in the body
of this beast species is able to neutralize the poisons of many snakes. However,
for a cub, an accidental snake bite can be fatal.
The female and cub move away from the water. They make their way through thickets
of large herbaceous plants with wide leaves, and among them nothing is visible
just a few steps ahead. The female follows in the lead, and Tisquesusa barely
keeps up with her, pushing with difficulty through the plants broken by his
mother. The female moves on four legs, spreading the plants with her forehead
and crushing them with her feet. She breaks especially strong petioles of leaves
with her front paws.
Tisquesusa climbs difficulty over the stems of plants and often stumbles. In
front of him, he sees only the backside, tail and legs of his mother, and around
him there is a solid green wall. Suddenly, the female froze, and Tisquesusa
bumped into her leg, but she did not even pay attention to him. His mother reared
up on her hind legs, stretching out her front legs in a fighting stance and
baring her huge incisors silently. Tisquesusa sensed his mother’s fear and hid
behind her body. The quills and hair on the female’s body stand on end – she
saw a real danger ahead.
Tisquesusa took a closer look and saw fragments of the spotted skin of some
creature somewhere ahead between the leaves – it is bright red with dark, almost
black ring-shaped spots. The female sees much more from her height.
Right in the way of the myriyutherium female and her cub, at a distance of only
ten meters, a tragedy has recently broken out. On the ground the bloody and
torn corpse of a myriyutherium porcupine lies – it is an adult male. Perhaps
it was his droppings that the Tisquesusa’s mother discovered when they got to
this island in the middle of a flooded river. Above the corpse of the myriyutherium
is its killer – a large pregnant jaguarete female. Despite the poisonous meat,
this porcupine still falls prey of predators, and the jaguarete is exactly the
animal that is able to kill myriyutherium and eat its meat without harm to itself.
It has enzymes in its saliva and gastric juice that destroy the toxin, so myriyutherium
meat, especially eaten slowly, in small pieces, turns out to be quite edible
for the jaguarete. The myriyuterium was killed recently: the cat’s muzzle is
stained with fresh blood, and there is not yet a barely noticeable smell of
decay in the air. Despite the fact that the female with the cub went straight
to the jaguarete, they are actually not in danger. The jaguarete female has
already got her prey, and she has spent a lot of energy to do it. Now, biting
and swallowing warm meat, she is satiated and resting. However, if someone gets
too close to the prey, the predator will have the strength to protect it.
The jaguarete female does not attack, but Tisquesusa’s mother continues to keep
a defensive posture, spreading her quills. She does not approach the jaguarete
female, but she stretches out her front paws with claws in front of her and
defiantly slits her incisors – if it comes to a fight, they can bite the bones
of the jaguarete’s paw. Her reaction is quite understandable: the mother protects
her cub. Tisquesusa is very frightened. He does not know how to react to such
a danger, so he simply freezes in place, keeping behind his mother. Taking the
opportunity, he remembers the smell of blood and predator. This smell brought
to his mind the memory of feces that his mother found once. Then Tisquesusa
did not understand why she reacted so violently to this discovery, but now the
separate fragments of information merged into a single picture. He remembered
not only the smell, but also the image of the enemy, and he will keep it in
mind for all further life – it is a lesson, which not learning can cost his
own life for him.
The jaguarete female spotted Tisquesusa’s mother, although she could hardly
see him hiding behind his mother’s huge body. Now she is too full and tired
to attack another beast. She continues to tear pieces of meat from the carcass
of myriyutherium, her eyes fixed on Tisquesusa’s mother.
Wanting to avoid continuing the meeting, which had already dragged on too long,
Tisquesusa’s mother simply began to walk around the feasting cat at a safe distance.
Although the jaguarete female is concerned with her prey, Tisquesusa’s mother
is careful: she bypasses the predator, keeping sideways to it, spreading her
quills and waving her long tail with a bone-horn mace at the end. She continues
to bare her incisors and does not take her eyes off the predator. Tisquesusa
keeps under cover of his mother’s body. He watches the female jaguarete continue
to eat, and inhales with horror the smell of fresh blood of a congener. And
when the jaguarete female bared her teeth in response to his mother’s careless
step, Tisquesusa was truly frightened more than anything else that he had ever
been in his short life.
Having bypassed the feasting jaguarete female, the mother led Tisquesusa farther
into the forest. They need to get away from this terrible place. Little Tisquesusa
has no idea what role this particular jaguarete female will play in his life.
She decided to settle in this area for a long time, and is unlikely to leave
it even after the end of the flood. Her pregnancy is coming to an end, and she
has already managed to build a lair, where she spends a significant part of
her time. She leaves it for a very short time – only to get food and support
her life. After all, very soon she will have to live not only for herself, but
also for several other small creatures that will be dearer to her than anything
in the world.
Rains and floods make their own adjustments to the life of the inhabitants of
the forest. The lower the level of the forest, the more the life of its inhabitants
changes. In the forest canopy, the voices of many birds sound – this is their
kingdom, and a few tens of meters above the ground their species diversity is
especially rich. In the tree crones, the voices of many species are heard –
some ones trilling skillfully, while others are ready to utter monotonous uniform
calls for hours. Some birds hide in the foliage and rarely show up, while others
are deliberately brightly colored, and their plumage can be seen even from the
ground. Large kurekure parrots belong to such notable inhabitants of tree crowns.
They behave very noisily, and their flock can be easily detected by their voices
– loud and hoarse rattling calls. When the rain stops for a while, they fly
in flocks among tree crowns. They are easy to recognize among other parrots
by their bright green plumage with yellow primary feathers, clearly visible
in flight. They rarely descend to the lower storey of the forest, so they do
not care what happens on the ground. They make an exception for very few cases,
and one of them is feeding on the fruits of polomiki lantana. In the forest
canopy, kurekures eat soft fruits and crack nuts with their powerful beaks.
The vigorous activity of these parrots, accompanied by their calls, begins as
soon as the rain peters out. They do not like rain, and in heavy rain, they
hide from bad weather in the foliage. At such a time, kurekures perch on the
branches in whole rows, clinging to each other’s sides, and in existing pairs,
the female even climbs under the wing to her male.
It’s even worse during the rain for the smallest forest birds, hummingbirds,
which are going through hard times during the rainseason. These birds are too
small to fly during the rain, so they are forced to feed during periods when
the rain peters out and it is possible for them to fly. When it rains, hummingbirds
hide in various shelters and fall into a torpor, saving their energy. This is
a forced measure – fasting for several hours of wakefulness is deadly for them.
Thickets of lantana do not tolerate immersion in water, and this circumstance
limits the distribution of the shrub. This plant grows in relatively dry places,
not flooded by the river during floods, and its abundant flowering helps many
neighboring hummingbirds survive the rainseason.
By mid-afternoon, the sky gradually brightened, and the fury of the rain petered
out. For a while, light rain was still pouring from the sky, but then it gradually
stopped, and the sun peeped through the breaks in the rain clouds. It warmed
the rain-tired ground, and the forest dwellers began to leave their shelters.
The thickets of polomiki lantana seemed to be preparing for the coming excitement:
during the rain, nectar was produced in their flowers, and when the rain ended,
the nectaries began to work even more intensively, and now the flowers have
something to meet the hungry lovers of nectar. The raindrops on the lantana
leaves had not yet dried up when the first butterflies flitted over the thickets.
Black-and-red tapiyucan wasps rushed to check the well-being of their ward pokopoko
treehoppers and harvest their honeydew to feed their relatives. The first hummingbirds
began to hover over the lantana inflorescences. These miniature birds belong
to a specialized lantana mango species, which life is closely linked to the
well-being of polomiki lantana. Lantana mango females and males differ sharply
from each other in coloration. The body color of the male combines predominantly
green-blue shades and black areas, and there are small patches of red in the
tail feathers. In the female, the wings are bright blue, visible from afar,
and the head is crimson with a blue spot on the back of the head. The beak of
lantana mango is long, slightly curved downwards and perfectly fitting in shape
to the tube of the polomiki lantana flower. Having warmed up and given the opportunity
to feed, lantana mangoes fly over thickets of fodder plants and strive to eat
fill as quickly as possible. The rainseason is a difficult time for these birds,
because the rains greatly reduce the feeding time of hummingbirds. Skirmishes
between lantana mangoes constantly break out in the air above the lantana thickets.
They drive each other away from the flowers, and those who are unlucky have
to look for the less abundant nectar of other plants, already competing with
other species of hummingbirds. But those individuals who managed to defend their
feeding areas enjoy the abundance of nectar in the flowers, emptying them one
by one. They perfectly distinguish flowers at different stages of blossoming
and, first of all, suck nectar from the freshest barely opened flowers. Along
the way, hummingbirds pollinate polomiki lantana, contributing to the emergence
of new berries that attract a wide variety of animals to this plant. Not all
hummingbirds will manage to survive the difficult time of the flood, and their
worst enemy is hunger. But those who survive will be able to rear offspring
when the rivers return to their banks.
…Time passed. Tisquesusa has grown noticeably and is now ten months old. Thanks
to his own health and maternal care, he safely survived the first flood in his
life. He is already large, only slightly inferior in size to his mother. She
has taught her cub well, and Tisquesusa finds much of the food himself. He has
long ceased suckling from his mother. However, for now Tisquesusa still continues
to roam the forest with his mother; he is not yet strong enough to conquer new
territory on his own. In addition, the smell of the mother calms him and creates
a feeling of psychological comfort. However, he continues to grow, and the day
will come soon, when he will have to start an independent life.
Tisquesusa has learned well the main trails in the territory of his mother –
they often have to use them, moving from one source of food to another. One
of the significant food resources is polomiki lantana. As Tisquesusa grew older,
he lost his childhood aversion to the taste of this plant, and now he happily
eats its shoots in large quantities, almost on a par with his mother, receiving
chemical protection – the main secret weapon of his species – from the plant.
Tisquesusa has learned to find colonies of pokopoko treehoppers and eat them
before their guards, the tapiyucan wasps, swarm and attack him. He already knows
many secrets of survival in the forest, but there are still things he has to
learn.
The pair of myriyutheres feeds in the thickets of polomiki lantana once again.
Tisquesusa had already learned the routes leading to this place and had been
here many times with his mother. He is already looking for delicious berries
of the plant on his own to bite after the bitter greens of the plant. He still
does not go far from his mother, finding support and protection in her presence.
He is not yet confident in his own abilities; therefore, in the case of a predator
appearing, he relies on his mother’s help in protecting him from the danger.
A meeting with one of the predators of the selva turns out to be fast and quite
predictable: in the thickets of polomiki lantana, the macrokupara feeds – an
omnivorous heavy-built animal that does not refuse meat if it is possible to
get it. The myriyutherians did not notice the animal feeding in the thickets,
so they were frightened when the disturbed macrokupara suddenly stood up to
its full height among the bushes. It was exactly the same situation that happened
some time ago. The sudden appearance of a large beast no longer frightened,
but caused aggression among the miriyutherians. Tisquesusa and his mother as
if on cue stood up on their hind legs, extended their front paws with spread
claws and bared their powerful incisors. This is the main weapon of rodents
– these teeth are able to bite through the flesh of the enemy to the bone and
even crush the bones when it comes to a fight. The macrokupara bares its teeth
and growls, standing on its hind legs, but steps back slowly – now the superiority
in strength is on the side of the myriyutherians. The macrokupara just wants
to avoid conflict, so it tries to stay away from aggressive rodents. The myriyutheres,
on the contrary, consolidate their success – they continue to threaten, displaying
their incisors, growl and make an attack on the macrokupara. The rodents see
that their opponent is retreating. Such behavior is no accident: this particular
animal has already met them before. The macrokupara limps on its hind leg –
it came into conflict with Tisquesusa and his mother when it tried to attack
him, a very small cub, a certain time ago. When the beast turned around and
took a few steps, a pink stripe of hairless skin became especially noticeable:
it covers a huge scar at the site of the wound. The damage inflicted by the
claws of Tisquesusa’s mother was very significant; the macrokupara survived,
but the wounded paw never fully recovered its working capacity. It isn’t yet
an old animal, but now it’s forced to move with great difficulty and eat more
plant foods in order not to die of hunger. A meeting with the macrokupara does
not pose a danger to myriyutherians – two porcupines are still stronger than
an adult and lame beast. However, the danger is not always visible so clearly.
The conflict of the huge porcupines and the macrokupara was carefully watched
from a shelter by two eyes of large cat. A predator with bright red fur and
black ring-shaped spots is almost invisible among the forest shadows, especially
for colorblind animals. An adult jaguarete had long been prepared an ambush
place near the thickets of polomiki lantana, and now it is patiently waiting
for the right moment to attack. The conflict between myriyutherians and macrokupara
is a good reason for this, since the attention of the beasts is now directed
at each other, and they do not pay attention to what is happening around. All
the muscles of the jaguarete are tense: the beast is waiting for the right moment
to attack.
At the moment, when the porcupine female stood on her hind legs, continuing
to threaten the lame macrokupara, the jaguarete rushed forward. Ignoring the
macrokupara and Tisquesusa, it attacked the myriyutherium female. With a powerful
blow of the whole body, it knocked her over on her back and seized her by the
throat. Having step on the front paw of the myriyutherium female, the jaguarete
deprived her of the opportunity to defend herself. The powerful jaws of the
predator pressed the head of the myriyutherium female to the ground, preventing
her from using the incisors, and the predator’s teeth pinch the prey’s throat.
A place not protected by the quills became the target of the predator’s attack,
and the speed and surprise of the attack determined its success.
The macrokupara did not expect the appearance of a cat. A kind of parity is
established between these two species in the selva undergrowth – it is something
like an armed confrontation, when representatives of both species are afraid
to attack each other so as not to receive damage from the rival, making it impossible
to live and hunt in normal way. Therefore, when the jaguarete appeared, it clumsily
turned around andrushed into the thickets, limping and trying to leave the scene
of the drama as quickly as possible. The jaguarete did not choose it, and this
meant that the macrokupara can live for some more time without fear of this
predator.
Frightened by the sounds of the struggle, kurekure parrots flew up from the
thickets of polomiki lantana. When they saw a jaguarete suffocating the myriyutherium
female, they screamed with their nasty rasping voices, adding even more confusion
to what is happening. From the forest, other parrots responded to their noise,
and somewhere in the branches monkeys yelled.
Terrified Tisquesusa took to his heels. Not far from the lantana thickets, he
and his mother had made a shelter where they usually spent the night when they
were in this part of the forest – it is a huge trunk of a fallen tree, which
cracked from hitting the ground. Tisquesusa’s mother dug a kind of cave under
it, where they hid from the rain and spent several nights in a row while feeding
in the lantana thickets nearby. Tisquesusa rushed completely unconsciously to
that place, which promised him of having peace and protection from dangers.
He crawled under the trunk, moving through a narrow hole in the ground and huddled
in the farthest end of his shelter. He still hears the grinding cries of the
kurekure parrots, and this cacophony will forever be associated with the presence
of predators in him.
Ignoring the panic of the animals around, the cat suffocates the porcupine female,
holding her paw with its clawed paw and not allowing her to defend herself.
If the jaguarete would free the myriyutherium’s paw, the porcupine can easily
fight it off and inflict terrible wounds that will incapacitate any predator
– for a long time, or even forever. The teeth of the jaguarete continued to
hold the throat of the myriyutherium until the prey ceased to show signs of
life. It was all over in a matter of minutes. When the predator felt that the
prey no longer had a pulse, its merciless jaws loosened. Now this myriyutherium
is just some meat that the predator really needs at the moment. To the accompaniment
of kurekure voices, the cat grabbed the prey by the head and dragged it into
the thickets. The predator has got its prey, so the voices of kurekure will
no longer spoil its hunt.
The killer of Tisquesusa’s mother turned out to be a female. And, ironically,
it was exactly the same female that Tisquesusa and his mother met on the island
during the last flood. Now their destinies crossed again, and this time their
meeting led to tragedy.
The jaguarete female is very strong. The carcass of myriyutherium weighs no
less than her own body, but the cat easily drags it through the forest, not
paying attention to such obstacles as tree trunks and roots. She drags the porcupine
carcass to her lair, where a hungry kitten is waiting for her – a young male
Ajuricaba*.
* A military leader who united several Manaos Indian tribes in Brazil to fight the Portuguese colonialists. |
Fate favored him from his birth. Ajuricaba is the only living
cub in the litter; the second cub was born dead, and the mother simply ate its
body right away. Now all the food and maternal care goes only to him, and he
develops successfully, actually without feeling hungry. Since his birth, Ajuricaba
has grown and strengthened significantly. His eyes are already open; he hears
normally and moves around the lair. He still feeds mainly on mother’s milk,
but his milk teeth have already begun to erupt, and he is trying to eat meat.
Usually his mother brought him small prey – large rodents, birds and lizards.
The cub played with it more than ate – he only slabbered it in his jaws, in
which teeth barely erupted. And now, his mother had brought into the lair an
unseen prey – a huge one he had never seen before. Ajuricaba came to the carcass
and began smelling it; then he tried to bite it, but jumped back instantly,
having got a quill prick on his lip.
The mother behaves more rationally: she tore open the belly of the prey and
began to eat the entrails and meat. Attracted by the smell of blood and meat,
Ajuricaba tried to tear off a piece of meat for himself, but the mother pushed
him away from the prey with a short growl and bared her teeth, and she continued
to feed after that. The mother does not allow him to touch the porcupine carcass,
because Ajuricaba is too small: the cub has not yet secreted the enzymes necessary
to neutralize the toxin that impregnates the meat of myriyutherium. However,
he gets his share of the prey. Having slightly filled her hungry stomach with
meat, the female carefully pulled out a piece of the liver of the prey for the
cub and began to chew it in order to neutralize the toxin with her own saliva.
Having thus prepared a piece of liver, she spat it out on the ground and allowed
the kitten to eat this food. Ajurikaba quickly dealt with this portion of prey,
and the mother gave him another piece, prepared in the same way. While the cub
is small, the mother must prepare a kind of baby food for him, if they have
myriyutherium meat for dinner. She must feed the cub in small pieces until he
is full.
When Ajuricaba barely coped with the last piece of chewed myriyutherium liver,
his mother continued to eat greedily. She peels off the skin from the carcass
with movements of her paws with extended claws and greedily gnaws the carcass.
Flies hover over a feasting jaguarete female, but even for them, myriyutherium
meat is far from being the best food. The remains of the poison in the meat
of the beast scare away even scavenger insects, and only the larvae of very
few fly species are able to develop in such meat.
While the mother is feeding, Ajuricaba crawls under her side and tries to suckle
milk, but now the mother is too busy eating her prey to pay attention to him.
In addition, Ajuricaba has grown up, and it is time for him to switch to adult
food. Therefore, the mother slightly growled at him, expressing her displeasure,
and continued to enjoy her food. The kitten had to wait a little while the mother
was fed, after which he tried to suck her again. And this time she did not refuse
him.
Before sunset, the female fed several times on the carcass of myriyutherium,
and Ajuricaba got a few more pieces of meat chewed by his mother. And at the
beginning of the night, she dragged the remains of the prey away from the lair
and buried it in the ground so that they would not be taken by the nocturnal
scavengers. There will be enough meat on the carcass for the next day before
it spoils so much that it cannot be eaten.
Ajuricaba grows up surrounded by motherly care. The jaguarete, a large predator
at the top of the food pyramid, has very low fertility, and the cub lives with
its mother for a long time. Therefore, she bears offspring once every three
or four years, if the previous cub does not die before it becomes independent.
In the litter, along with Ajuricaba, another male was born, but he died during
the birth. Therefore, Ajuricaba has every chance for successful maturation.
He is already switching to adult food and learning to hunt, although so far
only insects have become his prey. For now, he is too small to hunt real prey,
and he will have to learn the skill of killing from his mother for a long time.
He will live with her for another three years, even after switching to an adult
diet.
In contrast to Ajuricaba, young Tisquesusa will never again feel maternal care
in his life. For the rest of that terrible day, the frightened young myriyutherium
lay in his hiding place, afraid even to stick his nose out. He has no idea how
much his life has changed. His bond with his mother had only begun to weaken,
but had not completely broken, and he still needed maternal support in his daily
life. Now there is no such support, and until the end of his days he will have
to take care of himself – look for something to fill his stomach, notice danger
in time, defend himself from enemies and defend his interests when meeting with
congeners. In the meantime, he is too inexperienced, and he will have to comprehend
all the wisdom of survival on his own. And sometimes it is difficult.
At night, Tisquesusa, being very hungry, got out of the shelter, despite his
fear. Hunger appeared to be stronger than fear, and the young rodent carefully
crawled out. He constantly sniffs the air, trying to catch the scent of his
mother, but in vain. Having reached the place of his last feeding with his mother,
Tisquesusa sniffed the ground and finally found what he was looking for – a
faint, barely perceptible smell of his mother. It’s too old – she’s been gone
for a long time. Sniffing the ground, Tisquesusa discerned the smell of his
mother’s blood, which was mixed with the terrible smell of the jaguarete, her
killer. He found a trace left by the body of his mother, which was dragged by
a predator into its lair, and stumbled upon several quills that fell out of
her skin and lay on the ground. Nothing reminds him of his mother anymore. Her
image in the mind of the young myriyutherum will gradually fade away, losing
its clarity and being replaced by other, more recent impressions and memories.
But for now, the feeling of loss is fresh and strong. Having lost his mother,
Tisquesusa is experiencing severe stress, and it forces him to change his usual
way of life.Tisquesusa will now be afraid to feed during the day for a very
long time. All the coming days, he will hide out during the day in his shelter,
and get out for feeding only at night. In this way, his adult life began – much
earlier and scarier than usual.
A few more days passed. The sense of loss is still strong, but Tisquesusa is
slowly returning to habitual life. Now, when meeting with a predator, he can
only rely on himself, so he is very careful. He has learned to recognize smells
and sounds that indicate the approach of predators, and listens to the calls
of birds, especially kurekure parrots. Several times their voices already helped
him to find out in time about the approach of the animal, which was indirectly
responsible for the death of his mother – a lame macrokupara male. Tisquesusa
has learned to avoid encounters with this beast – while he is not strong enough
to protect himself from this one, he prefers to simply keep a safe distance,
or feed late in the evening and at night, when he is less likely to encounter
competitors. Such encounters often take place in polomiki lantana thickets,
which has already become a constant part of Tisquesusa’s diet.
Time passes, much is forgotten, but the mother’s lessons in obtaining food are
remembered for a long time, as are the images and smells of predators – they
are important for survival. At night, while eating the leaves of polomiki lantana,
young Tisquesusa discovered by smell a colony of pokopoko treehoppers settled
on the branches of lantana. During the day, these insects are easily visible
due to the metallic sheen of their wings. But Tisquesusa’s keen sense of smell
allows him to find them even in the dark. Having smelled these insects, he gladly
began to eat the leaves along with sweet insects and their secretions. At night,
the tapiyucan wasps keep in the nest, so Tisquesusa may not be afraid of their
stings. But all the same, his meal was not very long: suddenly Tisquesusa felt
his tongue as if burned by fire, and then the same sharp pain pierced his cheek
from the inside. At night, the colony-destroyers of pokopokos may not be afraid
of the stings of the tapyucan wasps, but at this time these insects still remain
under reliable protection – they are protected by the ferocious tarukuwa ants,
who charge the same price with sweet secretions for their services at night
as wasps during the day. Large tarukuwa ants have a peculiar diet: adults of
this species feed on gum and tree resins, which are digested with the participation
of specific bacteria. And the secretions of pokopoko treehoppers are much easier
to digest, and tarukuwa ants willingly visit their colonies at night.
Attacking Tisquesusa, who was devastating the pokopoko colony, the ants began
to actively bite him in the face, climb into his nose, ears and eyes. Dozens
of ferocious insects crawl through his fur, trying to bite his skin.Tisquesusa
began sneezing and rubbing his eyes with his paws – he was no longer in the
mood for treats. Several ants crawled into his nostrils, and their stings burned
the animal’s nose from the inside. Sneezing and snorting, Tisquesusa shamefully
fled the pokopoko colony, and the sweetness of this delicacy no longer attracted
him so much. The bitten skin nags and itches, the eyes are watery, and the nose
as if burnt by fire from the inside – the ants once again put to flight the
enemy much larger than themselves.
As a result, for the rest of the night, Tisquesusa, sneezing and coughing, fed
in the bushes of polomiki lantana, in which there were neither treehoppers nor
ants. It isn’t as tasty, but relatively safe – due to the poisonousness of the
plant, very few animals are able to feed on it. Having eaten his fill, he returned
to his shelter under a tree trunk, where he would hide out and sleep off until
the next night. While his fear is too strong, during the day he prefers not
to expose himself to possible enemies.
For tarukuwa ants, driving large enemies away from patronized pokopoko colonies
is a common activity. The sweet secretions of the pokopoko attract many lovers
of this delicacy – from small insects that simply steal sweet honeydew, to giants
like myriyutherium that eat not only honeydew, but also the pokopokos. Due to
the ability to mobilize and poisonous bites, they are able to put to flight
even a large enemy. The appearance of this ant is quite remarkable: it has a
black head and a bright red abdomen, warning small predators about the defensiveness
of these insects. Small birds quickly make acquaintance with tarukuwa ants,
and avoid these bright creatures in the future.
The ants did not have long to celebrate the victory. After putting Tisquesusa
to flight, they continued with their usual duties. Having evenly distributed
themselves among the branches occupied by the colony of pokopoko, the worker
ants began to harvest the secretions of these insects. Touching carefully the
pokopoko’s body with its antennae, the ant tickles it and forces to secrete
a drop of honeydew. Having drunk it, the ant passes to the next insect. Pokopokos
have one peculiar “occupational disease”: sugary secretions not only attract
ants and other animals, but also serve as a nutrient substrate for the growth
of microscopic fungi. Sooty fungus often settles on the bodies of insects –
this is a relatively harmless commensal, but after it, parasitic fungi can settle
on the body of the insect, causing the death of the pokopoko. Because of it,
tarukuwa ants carefully clear pokopokos of fungi settling on them.
Crawling along the branches, tarukuwa ants meet numerous insects. Many of them
are random guests or petty thieves in the pokopoko colonies. Herbivorous insects
are less common – the toxicity of polomiki lantana significantly reduces the
number of species that feed on it. Occasionally, ants have to deal with truly
significant opponents that cause serious damage to pokopoko colonies.
A very large caterpillar crawls along the lantana stem – it is about five centimeters
long, with a wide flattened body. It has a large head capsule with powerful
mandibles, and a conical chitinous horn towers above its head. Two more horns
of the same kind stick out on the back of the caterpillar’s body. This is the
larva of a large local butterfly itotoptera in the last stage of its development.
It is already finishing feeding, and will soon turn into a chrysalis, but still
continues to eat. The caterpillar crawls along the stem, from time to time raising
its head and shaking it from side to side. It crawls up the lantana stalk, and
its path leads to the pokopoko colony. Sensing the approach of the itotoptera
caterpillar, the treehoppers begin to move. They began to carefully remove their
proboscises from the vessels of the plant and flee: the itotoptera caterpillar
in the last stages of growth is an active predator, and the slow pokopoko nymphs,
which do not yet have saltatory legs and are wingless, represent a tasty dish
for it. One of the insects did not have time to take its proboscis out of the
lantana stem, and the itotoptera caterpillar overtook its prey. Having seized
the nymph with its powerful mandibles, the itotoptera caterpillar began to literally
chew it alive, bending the front part of the body upwards and holding the prey
with all its legs. The poison in the body of the pokopoko did not stop the caterpillar,
and soon the hard head and wings of the pokopoko fall down, and the predator
crawled further for new prey. The smell of a dying pokopoko alarmed nearby tarukuwa
ants, and several honeydew pickers blocked the caterpillar’s path. However,
it did not take their appearance as something serious – one of the ants was
immediately captured and eaten by it. The caterpillar was immediately attacked
by several more ants, which began to bite it. For ants, this caterpillar is
inedible, so they only bite it, trying to stop it. Their bites are not fatal,
but unpleasant for the itotoptera caterpillar. Its immune system allows it to
neutralize many poisons, and tarukuwa ant venom is one of them. Therefore, the
caterpillar simply crawls through the crowd of ants, continuing to hunt. Pokopoko
nymphs do not have time to flee – the caterpillar easily overtakes them, despite
the efforts of ants to protect their wards. When the number of ants around the
caterpillar becomes too large, it simply secretes a little amount of ant-pacifying
fluid from special glands. These glands will become especially active during
its pupal stage, but even now the small amount of caterpillar’s secretions confuses
the defenders of pokopokos, and they simply began to crawl absently over its
body, not perceiving the caterpillar as an enemy. The itotoptera caterpillar’s
appetite is great: in about an hour, it ate a dozen pokopoko and some more ants.
Satisfied, it crawled onto a lantana leaf and clung to its underside, digesting
food at rest.
When the itotoptera caterpillar disappeared and its secretions dissipated, the
tarukuwa ants gradually returned to their normal condition: they continued to
herd and clean their pokopokos, harvesting their sweet honeydew along the way.
No one bothered them again that night.
All night long, the tarukuwa ants gathered secretions from the pokopoko treehoppers.
This type of food is digested more easily than the sap and gum of trees, which
are more common in the diet of these ants, so the ants actively settle the pokopokos
in thickets, organizing new colonies of these insects.
Pokopoko colonies are guarded by tarukuwa ants at night and by tapiyucan wasps
during the day. But about once a day, there comes a time when, for an hour,
a battle for the right to own this source of food between two social insect
species is played out in the colonies of pokopoko. It happens so, because both
hymenopteran species consider the pokopokos to be their livestock. Usually their
interests in the pokopokos are separated by the time of activity, but in the
morning their activity time overlaps, and this leads to interspecies conflict.
By morning, the bulk of the tarukuwa ants had already disappeared into the nest,
which the workers of this species had gnawed out in the trunk of one of the
nearby trees. Tarukuwa ants prefer to spend hot days under the protection of
wood thickness, where there is an optimal humid microclimate with a relatively
constant temperature. The last workers of this species are still running around
the colony of pokopoko treehoppers, gathering sugary honeydew for relatives.
One of these ants lingered, taking care of the pokopokos and stroking their
abdomens with its antennae. In response to its actions, pokopokos emit droplets
of honeydew, which the ant greedily drinks.
The enemy attacked it from the air. The sting of a tapiyucan worker wasp hit
its thorax, paralyzing the ant, but it managed to emit a small amount of alarm
pheromone. Its signal was picked up by other ants that still remained in the
pokopoko colony, and several individuals, having fallen off the polomiki lantana
branches, rushed along the paths towards the ant nest, marking their paths with
a mobilization pheromone. Ants have no equal in the ability to mobilize quickly
a large number of relatives to perform a certain task, and after a few minutes,
dozens of very aggressive insects appeared on the branches of the bush.
The tapiyucan wasps had barely begun their daily care of the pokopoko colony
when a mass of tarukuwa ants, attracted by the alarm signal, rushed at them,
and a battle not for life, but unto death ensued. Each wasp grabs the ant with
its legs, stings it and throws aside. Some wasps even bite off the heads of
ants, or crush them with powerful mandibles. Ants follow a different tactic:
it is more important for them to keep the wasp on the ground, where they will
simply prevail in numbers. Several ants hold the captured wasp by its legs and
antennae, literally crucifying it, and another ant gnaws off the wasp’s head.
Sometimes the ant manages to do this and stay alive, but often the wasp’s sting
kills it, and the dead ant remains hanging on the wasp’s body without opening
its mandibles.
Ants have more numbers, but they lack the ability to fly and cannot attack from
the air. Having attacked the wasp, they try to immobilize it faster, but often
the help fails to arrive in time, and the wasp takes off with the ant that attacked
it, spifflicating it in the air. Since wasps are larger, more aggressive, and
more evasive due to their ability to fly, they usually win. New forces are pulled
up to help the attacked wasps from the nest, and the army of ants gradually
retreats, not forgetting to drag away a couple of dozen dead wasps. Adult ants
feed on gum and sugary substances, but they feed their larvae on chewed insect
meat. Wasps also do not leave the corpses of ants, feeding their own larvae
on them.
Tapiyucan wasps not only pollinate polomiki lantana – they actively help it
grow. The ripen berries of the plant that fall to the ground rot, and the seeds
germinate quickly. However, lantana seedlings are rather delicate and vulnerable,
they are easily drowned out by forest grasses and tree seedlings, intercepting
with foliage the sunlight they need. Lantana sprouts do not have enough poison
to oppress too many competitors, and they are helped in the struggle for living
space by tapiyukan wasps. Many worker wasps of this species crawl along the
ground in the undergrowth. They usually hunt small insects to feed their larvae
or gather building materials for the nest. However, having found a lantana seedling
by smell, the wasp seems to forget about its daily duties. It begins to crawl
around the plant in an expanding spiral, and bites the seedlings and shoots
of other plant species around it. The seedling of polomiki lantana turns out
to be surrounded by a ring of bare ground with a diameter of about the size
of a palm, getting the opportunity to develop normally.
The spread of polomiki lantana through the forest would not have been possible
without herbivorous birds that spread the seeds of this species. Kurekure parrots,
inhabitants of the forest canopy, are among the most efficient seed dispersers.
Flocks of kurekures are very noisy, their voices are heard for many hundreds
of meters, and these birds are easily recognized among other species by their
green body color with yellow flight feathers. They usually search for food in
the forest canopy, but descend into lantana thickets to feed on ripe fruits.
Outside of nesting time, these birds wander through the forest, so they spread
the seeds of the bush over a long distance.
Kurekures feed in large flocks of several dozen individuals. Birds can afford
to be a little less careful than other inhabitants of the selva: there are many
eyes in their flock, and the one who notices the danger notifies the other relatives
about it, and the whole flock flees. The voices of kurekures are one of the
most recognizable alarm signals in the selva.
Polomiki lantana grows in the forest, and with the support of insects, its thickets
expand the living space, inhibiting even the development of small trees. Along
the edges of the thickets of polomiki lantana, a quiet but stubborn struggle
with other plants takes place, and the result of its spread is the presence
of significant “bald spots” among the woody vegetation, occupied by undersized
lantana. In such places, sunlight penetrates to the trunks and branches of trees,
and epiphytes grow abundantly on them – ferns with feathery fronds or orchid
bushes with variegated flowers. Vines creeping along tree trunks often die from
below and continue to grow already as epiphytes, and their large dissected leaves
cast bizarre shadows on the trunk and branches of the tree that have become
their support.
The breeze shakes the leaves of a huge liana, and a dance of light and shadow
hides a large creature lurking among the foliage. It scans the flock of kurekure
carefully, choosing possible prey, and sharp claws break off the bark plates
when the predator squeezes the branch with its toes. It can clearly see the
mighty myriyutherium eating lantana greens somewhere on the edge of the thickets,
and the lone macrokupara, which limps, wandering among the thickets in search
of lantana berries. But this is too large prey, and myriyutherians are also
armed with hard quills. Tiny hummingbirds, lantana mangoes, colorful and sparkling
in the sun, are too small and nimble to be hunted. But kurekure is the most
suitable prey. It just needs to wait for the right moment to attack.
One of the parrots moved into the center of the polomiki lantana thickets. Myriyutherium
or macrokupara can hardly squeeze in here, and the most delicious fruits that
ripened in the sunlight grow here. The parrot perched on a branch sticking up
and hung with berries, and began to feast, greedily eating them. Too late, he
noticed the shadow, silently gliding under the canopy of the forest, and the
cries of the other parrots were clearly too late this time. The shadow swept
over the bushes on wide wings, the clawed foot grabbed the parrot, and the long
claws pierced the prey almost through, instantly killing it – the seized kurekure
did not have time to make even a sound. Flapping its wings, the monster gained
altitude and, to the cries of kurekure, disappeared among the trees on the opposite
side of the clearing overgrown with polomiki lantana.
The winged monster was the male of illapa – the largest feathered predator of
the selva. An eagle-sized bird is actually an overgrown kite, and ambush hunting
is a very characteristic behavioral feature of the illapa. The bird is very
fond of ambushing in the forest along the banks of rivers, as well as in any
other places where there are gaps in the forest canopy. This species is the
apex predator of the forest canopy, the threat of all large tree-climbing animals.
Holding the carcass of the parrot with its huge claws, the illapa male is resting.
His appearance is very recognizable: he has a black head with ruby red eyes.
The motley plumage helps the bird to hide among the thickets of epiphytes, and
very often the prey notices its approach too late.
The voices of kurekures are becoming more and more distinct: the parrots have
found him. Several parrots of this species appeared in the neighboring trees,
and the male illapa shook himself, as if trying to shake their unpleasant raspy
voices out of his head. A flock of kurekures gradually gathers around the illapa,
and the calls of other forest birds join their voices. They know that the predator
has received its prey, so it is safe to mob it, although it is useless. Grabbing
the kurekure carcass with its beak, the illapa male took off and carried the
prey to the nest, dropping the colored feathers of the parrot along the way.
At a safe distance, he is pursued by the entire flock of parrots crying loudly,
joined by several birds of other species. Their voices warn the inhabitants
of the forest canopy about the danger, therefore, having heard the cacophony
of the flock of birds, monkeys and other arboreal beasts hide, and other flocks
of kurekure somewhere in the distance respond, as if grabbing
the baton. The alarm cries of other bird species are hardly audible against
the background of the cries of a kurekure flock.
Illapas occupy a vast territory – each bird needs about a hundred square kilometers
of hunting grounds to feed. Therefore, the path to the nest is not close even
for a well-flying bird like the illapa itself. The flock of parrots and other
pursuers was left far behind when in the field of view of the male a giant nest
appeared, built on the branches of a tall tree, under the canopy of a large
branch, covering both from the sun and from the rain.
The illapa male must hunt not only for himself: recently three chicks hatched
in the nest. While they are small, they have enough food brought by their parents.
Even a relatively small carcass of a kurekure parrot will allow them to get
sated and calm down for a while.
The male dropped the dead bird into the nest, from where he was greeted with
a squeak by the ever-hungry chicks. They are not alone: the larger female is
already in the nest, and she also greeted him with cries. The male landed on
the edge of the nest and walked around, looking at his offspring. He saw that
the female was already feeding to them a young mboi-tata caecilian, which she
managed to catch herself: she tears the amphibian into pieces and puts the meat
in the beaks of the hungry chicks. It seems that today the kurekure carcass
will be eaten not by the chicks, but by the female herself: from the moment
the offspring appear, adult birds spend a lot of time hunting, and in this case,
not every attack is successful, and the chicks need food in the first place,
and usually parents get only leftovers. The illapa male gave the female a parrot
carcass so that she could at least have a bite to eat herself. Having finished
feeding the chicks the female pressed the carcass with her foot against the
edge of the nest and began to tear feathers out of it. The male himself barely
had time to catch his breath and swallowed only a small piece of slippery mboi-tata,
after which he took off and went in search of a new victim. To raise offspring
successfully, parents must spend a lot of effort, and even in this case, not
all chicks will be able to survive: over time, they will begin to compete intensely
for food, and someone will become a victim of their own siblings.
The life of herbivore is simpler than that of a predator. It does not need to
learn to hunt, but it must be able to search for food among many types of plants.
The species diversity of rainforest plants is high, but often the plants are
poisonous or too thorny. These are the costs of the struggle for existence in
conditions of an abundance of herbivores: herbaceous plants have too many enemies,
so poison and thorns, alone or in combination with each other, are popular defense
devices that, if not completely get rid of enemies, then significantly reduce
their number.
Tisquesusa eventually coped with the stress that the loss of his mother caused
him. He gradually ceased to be afraid to feed during the day, and now leads
a familiar lifestyle – he feeds during the day and spends the night in some
kind of temporary shelter. He has become cautious and very often listens to
the bird voices in the forest. And the voices of kurekure parrots cause him
fear, even if these birds mob an owl or an illapa somewhere high in the crowns
of trees. And yet Tisquesusa is in dire need of the company of other members
of his species in order to somehow compensate for the absence of his mother
nearby. He tried to get close to various myriyutherians, but they were mostly
adult animals, and they were aggressive about the presence of Tisquesusa next
to them. Nevertheless, he continued to try, and after a few days he chose a
more successful replacement for his mother. The young beast stuck to a female
with a cub, whom he once met near the thickets of lantana. Tisquesusa keeps
close to them, trying not to fall behind, as if trying to find protection from
someone else’s mother. The cub of this female shows natural curiosity: it tried
several times to approach Tisquesusa, but the mother each time stood between
them and persistently pushed the cub away from the unfamiliar animal. The female
herself tolerates his presence, because in the smell of Tisquesusa she catches
the features inherent in the cub, and this makes her parental instinct work,
but Tisquesusa still smells different from her cub, so the female is on her
guard and stops any attempts by Tisquesusa to get close to her and a cub. She
tolerates his presence rather than accepting him. And if her cub happens to
be next to Tisquesusa, the female instinctively protects the cub. She barks
at Tisquesusa and ruffles the quills, threatening him.
Being close to this family allows Tisquesusa to learn some more survival lessons.
The young male makes no attempt to take food away from them, but carefully sniffs
the remnants of their food, remembering the smells, and sometimes just eats
up the leftovers of tubers or leaves from their dinner. His lessons are not
over yet, and his survival is in question for now, but Tisquesusa is no longer
a small cub and knows how to learn. He tries to put into practice the lessons
learned in this way, looking for edible plants a little away from the female
with the cub, and each successfully learned lesson increases his chances of
survival.
Several days of neighborhood with the myriyutherium family passed relatively
peacefully.Tisquesusa carefully kept his distance, so his presence did not cause
aggression – the female, at most, displayed a threat, but Tisquesusa quickly
stepped aside, and she calmed down.
One morning Tisquesusa habitually began to search for food. He wandered around
the female and her cub, looking at them, and was busy more in looking for edible
plants. He managed to find one of them quite quickly: its spotted leaves are
clearly visible and recognizable. This plant with variegated leaves, one of
the types of calathea, is very tasty for him. Fragments of his memories preserved
the image of his mother, who often looked for this plant and allowed him to
feast on dug up starchy roots. Tisquesusa began to dig, and soon succeeded in
pulling out of the ground several long spindle-shaped rhizomes, rich in starch
and having a pleasant taste. Having torn off one of them, Tisquesusa began to
chew it with pleasure. He did not notice that the adult female approached him
from behind, and felt that she began to push him away from the delicacy, only
having got a kick in the side. The female does not show aggression: her quills
are pressed to the body, and she simply pushes him sideways. Tisquesusa whined
in annoyance, but did not back down – he pushed the female in response, feeling
that she had retreated. He has already become stronger than at least some of
the adults, which means that he could already survive on his own. But the response
to his push was unexpected: the female bristled with quills, stood up on her
hind legs and began to step toward him, growling and baring her incisors, as
if he weren’t another myriyutherium, but a predator. The conflict over food
turned into real aggression – the female felt that he was already strong enough
to pose a danger to her own cub. She steps on him aggressively, pushing him
by head and paws away from food, and at the same time waving his tail menacingly
from side to side. Tisquesusa knows only too well what this gesture means: it
is a final warning, followed by a full body turn, followed by a tail swipe that
sticks many pointed quills into the skin and muscles of the enemy. This female
is primarily concerned about her offspring, and she felt that Tisquesusa could
become a competitor to her own offspring.
Frightened, Tisquesusa fled into the forest – an attempt to find at least some
semblance of maternal affection failed, and he again became a loner and was
doomed to explore the world on his own.Tisquesusa is in a precarious position:
he already knows enough to not go hungry, but not enough to successfully avoid
or confront predators. Now he is on the fine line between life and death. Many
of his relatives die at the age of a year or a little more, starting an independent
life, and Tisquesusa had to become independent too early.
Over time, Tisquesusa found a more or less permanent feeding area in the forest.
Part of this territory is a river bank, and Tisquesusa often feeds near the
water. At this point, the river breaks the forest canopy, so sunlight penetrates
to the ground, stimulating the rapid growth of herbaceous plants. The banks
of the river, composed of easily eroded sediments, represent a favorable place
for the growth of moisture-loving plants that can withstand flooding. Tisquesusa
does not come here, although grasses near the water are juicy and taste good:
the banks of the river are very swampy, and once Tisquesusa almost died, with
difficulty getting out of the squelching mud, which sucked him almost up to
his knees. He is too heavy to move on such soil, so he prefers to feed on a
dry shore.
Long-legged, graceful and fragile animals with dark legs and brown hair on the
body feed in the thickets of marsh plants – these are jakarawas. They are distinguished
by a bizarre appearance: muzzle of this beast is elongated into short mobile
proboscis, and ears are wide and rounded. These animals look like a small antlerless
deer with long legs and a graceful elongated neck, but in fact they are descendants
of a small caviomorph rodent – agouti of the human era. Surprisingly, these
small animals are close relatives of the giant groundsloth
rodent, a gorilla-like wanderer of the Patagonian plains, although they
do not look like it at all. But similarly looking cursorial four-legged deermaras
from the plains of South America are their very distant relatives. Jakarawas
are also related even to myriyutherium, although their relationship is much
more distant. However, both of them are caviomorph rodents, and in South America
of the early Neocene they went through the period of intensive adaptative radiation,
filling various ecological niches previously occupied by mammals from other
orders, and as if testing their neighbors for strength. As a result, many ecological
niches in various ecosystems of the continent turned out to be occupied by various
rodents, and the jakarawa is a typical representative of them.
This fast-footed cautious creature is a semi-aquatic animal, perfectly adapted
to living in two environments, as well as on their border, where ground and
water mix and form marshy mud impassable for many large forest dwellers. Graceful
jakarawas with their spreading digits are able to move through wetlands easily,
and this skill helps them escape from land-based predators. The movable muzzle
allows the jakarawa to eat grass, capturing even thin blades of grass with its
lips. The ancestor of this species was able to crack hard nuts with its teeth,
but the jaws of the jakarawa have become much weaker, and it feeds only on soft
grassy vegetation. Sappy marsh plants are its usual food, and jakarawa can even
eat plants that are poisonous to other mammals.
The head of the herd of these rodents is the male. It differs from females with
a darker brownish coat and larger size. He has the right to eat the most delicious
plants and tubers, and the females resignedly yield to him. But he also has
to protect the herd from the encroachments of other males or from the attack
of small predators. Jakarawas prefer to flee from large predators, or simply
dive into the water. While the females are feeding, the male often sniffs the
air and looks around – one of the most dangerous predators for the jakarawa
is the illapa, and it is vital for them to notice the attack of this monster
in time.
A pair of cubs feeds next to adults. Unlike adult animals, they are striated,
like zebras, but the pattern is not black and white, but of brown shades. As
long as their mothers are calmly nibbling on plants and the head of the herd
is not sounding alarms, the cubs can play with each other. Thanks to the striped
coloration, one of the cubs deftly hides in the thickets and freezes while the
playmate is busy looking for it. And the discovered cub, escaping from its pursuer,
jumps springily around the feeding adults, bouncing much higher than their backs.
From time to time, the roles of the cubs change, and their games bring revival
to the monotonous life of these herbivores. These young animals have not yet
left their mother’s care, so one or the other interrupts the game to suck milk.
The adaptive radiation of South American rodents has led to the emergence of
many species of various shapes and sizes, occupying different ecological niches.
In various ecosystems of the mainland, there are many small species of caviomorph
rodents resembling species that existed in human epoch. However, some of the
Neocene rodents are truly huge.
Far from the shore, huge bodies slowly move under water at a depth. These creatures
are huge, and even almost in the middle of a forest river, their growth is enough
to walk along the bottom of the river on four legs, being barely covered by
water. They are accompanied by schools of fish, and downstream from the herd
of these creatures a long muddy plume stretches. One of the animals pushed off
the river bottom and surfaced. A huge head with high-set ears, eyes and nostrils
emerged from under the water. The nostrils opened, and noisy exhalations and
inhalations followed. The huge animal headed towards the shore, and its relatives
followed it. Large barocavias emerge from the water one after the other, and
the water flows down their sides. Thick powerful legs are equipped with blunt
claws, more like hooves, and easily support several tons of the animal’s live
weight. These beasts have convergent similarity to African ishisongas
and boaropotamuses, but are
far from being related to them. Looking at them, it’s hard to believe that these
ones are also rodents – in size they are more comparable to hippos and rhinos.
South America is a place where during the Cenozoic rodents more than once made
attempts to become larger, and in the Neocene their giant representatives are
found everywhere on the continent.
When barocavias appeared, small jakarawas rushed to the side, giving way to
the giants, but they did not do it out of fear. The only thing they don’t want
is to accidentally fall under the feet of these giants, who are not used to
watching where they step. It happens that jakarawas seek salvation in the proximity
of barocavia – not every predator will dare to attack them in the presence of
giants, because barocavia can perceive its actions as an attack on themselves
and go on the defensive.
A small herd of barocavias climbed ashore. Like in the case of jakarawa, the
leader is a large male with a huge head. He yawned, and snow-white incisors
of monstrous sizes are visible in his mouth. Their dazzling brilliance is a
sign of the health and strength of the beast, and their size and strength make
it easy to bite tree branches if they can be reached. On the head of this male,
the wool hides many scars received both during mating tournaments and during
protection from predators. This is a skilled fighter and a well-deserved leader
of the herd – he is able to put to flight even a ferocious jaguarete.
Ignoring the small jakarawas, the huge rodents wander into the forest. Here,
between the trees, year after year they have trampled a path on which little
can grow through the layer of trampled soil. Barocavias feed in the forest,
and the appetite of these giants is very large – they are able to eat away the
greenery of herbaceous plants over large areas. Therefore, barocavias are forced
to constantly move around the feeding territory so as not to deplete food supplies.
However, in this part of the forest, they are looking not for fodder plants,
but for thickets of polomiki lantana. Although this plant is poisonous, and
a large enough amount of its greenery can kill an adult barocavia, animals regularly
visit its thickets – they have a very definite interest in this plant.
When barocavias approach the polomiki lantana thickets, this does not go unnoticed
by anyone. Huge animals move along the path, cutting off and destroying the
vegetation, and the echoing stomp of their feet scares away the small inhabitants
of holes. Myriyutherians fed in the thickets simply move aside or completely
leave this part of the forest, and flocks of birds that fed on the berries of
the plant hastily finish pecking at the berries and fly away.
The mighty barocavias sniff the greens of polomiki lantana, as if making sure
that they had found the right place. The sense of smell plays an important role
in the life of these animals, giving them much more information about the environment
than vision. Several animals had plucked off the very tips of the lantana shoots
and had chewed them, despite the bitter taste of the plant. Animals do not need
the greens of these plants as food, because even the mighty organism of an adult
healthy barocavia can fail to cope with the poison of lantana. However, a very
small amount of poisonous greenery of the plant is a good anthelmintic. The
animals prefer to use lantana greens as a remedy in a slightly different way.
The male leader of the herd resolutely entered the thickets, breaking them with
his feet, and simply fell on his side, breaking the bushes. Having arranged
for himself such an impromptu couch, he began to rub against the plant mass,
rubbing the sap of crushed shoots into his wool. The females followed his example,
and in a few minutes a significant part of the thickets of lantana was crushed
by the bodies of the animals, wallowing in rapture on them. From time to time,
the barocavias scratch themselves against the ground, snoring loudly with pleasure.
The poisonous sap of the plant, soaking into the fur of animals, repels ticks
and blood-sucking insects from them, and also leeches, when animals stay in
the water.
The hygienic procedures of barocavias bring confusion to the lives of guests
and inhabitants of the thickets of polomiki lantana. Myriyutherians simply leave
the thickets so as not to be in the path of these giants – if a conflict accidentally
arises, the quills of these huge porcupines will not be able to protect them
from the mighty barocavias. Hummingbirds, butterflies and tapiyucan wasps fly
over the thickets, trying to stay away from the barocavias wallowing on them.
Kurekure parrots express their dissatisfaction loudest of all – the beasts prevented
them from feeding on berries, and the sharp rattling voices of these birds are
heard far in the forest.
Barocavias stayed in the polomiki lantana thickets no more than half an hour.
One by one, the animals rise to their feet and stand motionless for a while,
sniffing the air, in which there is a sharp smell of sap from the crushed shoots
of polomiki lantana. They try not to wallow in the thickets for too long: the
poison from the sap of the plant is absorbed in some quantity into the skin
of animals and enters the bloodstream. This kind of hygiene procedure is very
effective, but if used incorrectly, it can harm the animal. When the barocavias
leave the thickets, a specific aroma of polomiki lantana sap comes from their
hair.
After the hygienic procedures of barocavias, the thickets look terrible – where
the beasts wallowed, the trunks and branches of the bushes are broken and crushed,
and some of the shoots are simply trampled into the ground. Tisquesusa came
to the polomiki lantana thickets just at the time when barocavias were about
to return to the river. He often observed barocavias eating water plants or
marsh grasses on the banks of the river, so meeting them in the thickets of
lantana was somewhat unexpected for him. He rarely saw the barocavia up close,
so the huge size of the animals made a lasting impression on him. He tries not
to get too close to them, and sees how the branches of the lantana break under
their feet. After the barocavia herd left the thicket, Tisquesusa looked around
and sniffed the air. It smells of barocavias and their manure, and Tisquesusa
is well aware of this smell, which does not promise anything bad – the barocavias
are huge, but harmless ones. And Tisquesusa’s favorite feeding place is almost
completely devastated by the huge rodents. Hummingbirds and insects circle over
the miraculously surviving patches of flowering thickets of lantana, and the
main part of the thickets is literally rolled up by huge bodies of barocavias.
Lush multi-colored inflorescence heads are smeared on the ground, young shoots
are broken, and the foliage is crushed. The porcupine simply has nothing to
eat here. Having eaten several shoots at the edge of the thickets, Tisquesusa
walks away. In the territory where he searches for food, there are several more
places where lantana grows, and he is able to feed on other plants also. He
is in a better position than hummingbirds and insects that feed exclusively
on this plant. They’ll have to go through some tough weeks, until thickets of
lantana will restore.
Polomiki lantana is well adapted to the struggle for existence in the face of
competition with many other plant species. The shoots are broken, but the roots
mostly survived, so the plant will quickly recover from the root shoots. Its
shoots trampled into the ground will quickly give roots, and axillary buds will
begin to sprout on broken branches. Butterflies and hummingbirds have only accidentally
survived plants along the edges of the thickets to feed on, so they have to
look for food in the areas where the giants have not reached, or temporarily
switch to feeding on the nectar of other plants. But in about a month, lush
thickets will spread here again, attracting pollinators with bright flowers.
Some events in the life of the selva happen quickly, while others require much
more time. For example, the growth of illapa chicks takes a very long time.
Events in the life of the brood of these predators developed rather tragically.
Although the male and female hunted quite successfully, the growing chicks required
significantly more food than their parents could provide. One of the chicks,
a female, died quite early, and by the time one of the parents returned with
food, it had already been almost completely eaten by its brothers: after this
incident, only the two males remained in the brood. When one extra mouth was
gone, they began to get more food, and the young illapas had already begun to
fledge. They still have a lot of juvenile down, but on the wings and tail, long
feathers that have not yet unfolded have sprouted from under it. The chicks
have already grown stronger and walk around the nest, and the parents, those
arriving with prey are met with a loud squeak and flapping of wings, and they
push and press back each other away from the prey. They are already strong and
very voracious, ready to eat often and in large quantities. Therefore, gradually
the amount of food brought by their parents appeared not enough for them. Adult
birds spend a lot of time hunting and are absent from the nest for a long time,
and the chicks in their absence arrange fights, sometimes even for the completely
inedible remnants of their former prey, such as a dried bird wing or a piece
of mammal skin.
The illapa female had no luck in the hunt for a long time: in the morning she
was inopportunely noticed by noisy kurekures, and she had to escape from their
annoying attention threatening to disrupt her hunt. Then the monkey that she
was hunting safely slipped away at the last moment, and the bird itself had
to hide for a long time in the foliage before the disturbing cries of the forest
canopy inhabitants subsided. When the female finally flew to the nest, holding
in her paws a meager prey, a small duck preyed almost by accident, she saw that
one of the chicks had already solved the problem of finding food. While there
were no adult birds with food, he simply killed his brother and ate him. The
wind carries the fluff and feathers of the killed chick, and his brother greedily
tears his meat. Now only one chick remained in the brood of illapa couple –
Saguanmachika*. Left alone, he guaranteed his survival, because now all the
food will come only to him, and he will be able to grow and get stronger in
safety.
* In honor of one of the chiefs of the Chibcha-Muisca Indians |
Although right now, at least, one prey item of his parents
will not get to him. The female did not interfere with him feeding on the corpse
of his brother, and she began to peck at the brought duck herself. She does
not care what the chicks do to each other: she will only feed the one who asks
for food, and no matter how many hungry mouths there are in the nest. Therefore,
she reacted to what was happening in the nest indifferently, and simply satisfied
her own hunger. It is more expedient for her to raise one strong, normally developed
chick than two less viable ones.
The biology of polomiki lantana is one of the few unique cases when a selva
plant forms extensive single-species thickets. The well-being of this plant
determines the life of many species of animals of the Amazonian selva associated
with this species. Polomiki lantana plays a very important role in the life
of various birds: omnivores, insectivores and nectarivores. Among them there
are both temporary visitors to the thickets, such as kurekure parrots, and permanent
inhabitants, closely connected to the plant by trophic relationships. Such birds
try to nest closer to lantana thickets.
The lantana thickets quickly recovered from the damage caused by the hygiene
procedures of barocavias. Already two weeks after the visit of these beasts,
the thickets were dressed in fresh greenery, new shoots grew from broken branches,
and one more week later, the first flowers began to blossom above the fresh
greenery. A month later, nothing remembers about the ravage caused by the barocavias.
When flowers appeared on the lantana, its pollinators also return. Like shining
lightenings, tiny motley hummingbirds – lantana mangoes – fly above the thickets.
These birds have beaks perfectly fitting the depth and shape of the flower of
this plant. Having plunged its beak into the flower, this bird sucks out the
nectar and simultaneously carries away on its forehead the lumps of the pollen
which will be removed from bird’s feathers by the stigma of the next flower
it will visit. Lantana mangoes take the benefit of the plenty of nectar given
them by this plant, and their number in polomiki lantana thickets may be rather
high.
The nesting of lantana mangoes takes place away from the lantana thickets, where
there are too many enemies and random guests who can ravage the nest – near
the reservoir closest to the thickets, where these hummingbirds make a small
hanging nest above the surface of the water. One lantana mango male, ready to
reproduce, has chosen a mate, and courts her by performing a bizarre courtship
dance in the air. The female also liked him, and she reacted favorably to his
courtship. The courting male led the female away from the lantana thickets,
following approximately the same way that the barocavias had come here some
weeks ago. The path is overgrown with herbaceous plants, but above it the sunlight
breaks through the forest canopy in some places, and in the rays of sunlight
the lantana mango male hovers in air, flaunting his shiny plumage in front of
the female.
On the same day, both mates took up the construction of the nest. They chose
thin branches of a low tree hanging over the surface of the water, and began
making a miniature cup-shaped nest. Birds twist whitish fibers, seed fluff and
cobwebs gathered among trees into a kind of fabric. The place is chosen so that
ground-dwelling predators will not dare to get to the nest. The birds tied with
fibers two branches touching each other and placed between them a miniature
structure of lichens and bird feathers, fastened with pieces of cobwebs, eventually
forming something like a little basket. A day later, the female laid the first
egg – relatively large by the standards of hummingbirds. A full clutch of lantana
mango contains three to five eggs. Caring parents will change each other every
day – while one parent hatches the eggs, the other one feeds it. The incubation
will last 11 days – these birds grow quickly and have a short lifespan.
Despite the fact that these birds are tiny, during nesting they are ready to
fight for their offspring against any enemy. The main weapon of the lantana
mango is its pointed beak, and the main advantage is high speed and maneuverability
of flight. During incubation, lantana mangoes feed not in polomiki lantana thickets,
but on other plants that grow not far from their nest. Birds must replace each
other in the nest, as well as protect the nest itself and the surrounding area.
A nest of lantana mangoes, hanging on the tips of branches, is practically inaccessible
to terrestrial animals: few of them are able to freely roam the swampy river
banks and swim. However, there are animals for which swamps and rivers represent
the most favorable habitat. Graceful jakarawas roam the shallow water, plucking
the leaves of marsh plants. The male leads a herd of several females and cubs,
protecting them from small predators. Browsing the plants, the animals approached
the borders of the nesting territory of lantana mangoes. These beasts are herbivores,
but the hummingbird male rushed immediately towards the intruders. His strength
is not enough to give a physical rebuff to violators of the borders, but he
has effective defensive techniques in reserve against a large opponent. A small
bird flits before the eyes of the jakarawas like a huge fly, constantly distracting
them and not giving them the opportunity to feed quietly. When the jakarawa
male took a few more steps, the hummingbird lunged and pricked its snout with
its beak. The male jakarawa barked in displeasure, but the bird did not abandon
him and continued to hover right in front of his muzzle. Several times the lantana
mango male pricked his opponent in the muzzle with his beak, and once delivered
a prick with his beak dangerously close to the eye. The jakarawa male shakes
his head, trying to save his eyes from the annoying tiny bird, but the hummingbird
does not back down. After several minutes of defense, the lantana mango male
managed to win: the jakarawa male went to the depth and dived, and the females
with the cubs followed him obediently. The lantana mango male flew up above
the water, watching the jakarawas moving at a shallow depth. When one of the
females emerged to inhale air, the lantana mango male swooped down on her, forcing
her to dive. Having escorted the uninvited guests in this way, the hummingbird
male took off and headed towards the thickets of epiphytic plants to refresh
himself with nectar.
The female laid the second egg, and the next day the third one. Some birds begin
to incubate clutch after the third egg, but stronger birds have up to five eggs
in clutch. In the oviduct of the female, the formation of another egg began;
when it’s laid, she can begin to incubate the clutch.
A nest of hummingbirds takes a little time to build: it is an ephemeral structure
that is required to maintain strength and elasticity for only a few weeks, while
the birds incubate eggs and raise chicks. And the life of hummingbirds is also
ephemeral – they reach puberty quickly and do not live for very long. By the
time the large kurekure parrot becomes an adult, the hummingbird is already
dying of old age – in the case when it manages to live to such an age.
Outside of nesting time, kurekure parrots love the company of relatives and
fly through the forest in noisy flocks, but nest strictly in pairs. These birds
are very sociable and intelligent; in creating their families a huge role is
played by the personal attachment of these birds to each other, without which
it is impossible to form a stable family. The basis of a successful family life
is the presence of a good tree-trunk hollow in which it is possible to make
a nest. This is, perhaps, the greatest difficulty in the family life of parrots:
in the Neocene, in the South American selva there is a great demand for tree-trunk
hollows. This is due to the introduction of honey bees to the continent in the
historical era; these insects for millions of years competed successfully with
birds for tree hollows. In Neocene, the situation remained almost the same:
bees of several species occupy
hollows of trees actively, and the birds must be working to provide themselves
with housing. However, kurekure parrots found a way out of this situation.
The kurekure male “leks” in the forest canopy, vocalizing on the branch next
to a small hollow. He found a suitable place for the nest and now calls the
female with a loud voice. Hollows represent a scarce resource, and it took a
long time to find a place for a nest. At first glance, this hollow is hardly
suitable as a nest for a pair of large parrots – one bird can hardly fit in
it. However, the female examines it anyway – she climbs into it entirely, but
her tail remains sticking out. After her, the male climbed into the hollow.
He is slightly larger than the female, and he barely managed to crawl back out
in reverse. After that, his plumage turns out to be rumpled badly, and a pair
of broken feathers sticks out of it. However, the birds do not feel like unlucky
ones: they are very lucky to find this hollow. They met in the flock and have
been together for a long time, and the tree-trunk hollow they had found takes
their relationships to the new level, allowing both birds transferring their
best qualities to the next generation of the species.
The calls of the kurekure male were addressed exclusively to this female, but
not only she listens to them attentively. Other individuals in the flock listen
to the voices of their kin to keep abreast of what is going on with the others,
and some ones may even use this information to their advantage. While the kurekure
pair examined the hollow, another kurekure, an adult male competitor, perched
on the tree branch a little above the hollow. His plans are very far-reaching:
a few weeks ago he lost his female that was killed by an illapa, and now he
wants to both restore his status as a family breeding bird and get a hollow
for nesting. For some time he hid among the branches, examined the hollow and
assessed the strength of a couple of relatives, and then resolutely went on
the offensive. He fluttered onto a tree trunk and climbed up to the hollow,
clinging to tree bark with his claws. He is confident in his abilities, so he
does not hide, and his aggression is directed mainly at the younger male, whom
he regards as a rival. However, the stranger clearly overestimated his own strength
and underestimated the unity of the pair of his congeners. Both birds of the
pair, hissing like cats, and fluffing the feathers on their heads and bodies,
began to advance on him. The lone male did not retreat, and was the first to
attack the young male. The birds were flung together, flapping their wings and
screaming, and the female, seizing the moment, began to tear the plumage of
the stranger, and green fluffs began swirling in the air. While the males were
fighting, she managed to grab the stranger’s feathers and cut off several feathers
in half. As a result, the lone male shamefully fled, accompanied by the cries
of both birds of the pair, which were echoed by relatives, who witnessed the
trampling and restoration of justice. The kurekure pair tested the strength
of family ties once again, and the victory over a stranger emboldened the birds
even more.
The hollow found by the birds is too small for a nest, but this is not a problem
for birds that have such strong beaks. The pair of parrots began to pick at
the walls and bottom of the hollow, throwing out pieces of wood broken off by
their beaks. The birds enter the hollow, replacing each other, and work on the
hollow for several hours a day. While one bird is busy with construction work,
the second one gathers food and feeds its mate in regular way. Such an exchange
of food means a high degree of trust between the birds in a pair, and their
nesting promises to be successful. Powerful beaks easily gouge out the wood,
and soon the hollow will be of the proper size for making a nest.
It’s been about two weeks. The incubation of eggs by lantana mangoes has been
completed successfully, and tiny helpless nestlings already squirm in the nest.
They develop quickly and require a lot of food, so parents have to fly much
more to provide them with food. After hatching, the chicks will live under the
supervision of their parents for a total of about two weeks, rapidly developing
and fledging. During all this time, parents will feed their offspring with protein-rich
insects, adding nectar to the diet only later. When young hummingbirds leave
the nest, nothing keeps their parents together, and they part to soon create
a new family with another partner. Young birds will become sexually mature only
after 4 months. This is very fast compared to large birds like the illapa, in
which puberty occurs only at the age of four. At this age, even a long-lived
hummingbird will already die of old age. Four months will pass quickly, but
they still have to survive even up to this time. Tiny chicks have too many enemies
– they can easily be eaten by other birds, arboreal frogs or rodents. And some
of their enemies have a very unexpected appearance.
Lantana mango chicks are sitting in the nest. They are covered with bare pinkish
skin through which blood vessels are seen, and on the head and back the skin
is covered with numerous thin horny spikes – these are feathers that have not
yet unfolded. In the wings, the feather germs are longer and slightly thicker.
To save energy, the chicks sit almost motionless, and the nest made of fluff
and cobwebs helps to reduce heat loss. Chicks activate only when parents with
food appear. But no matter how inaccessible the nest may be, uninvited guests
may appear in it.
A large butterfly with a thin, slender body and a metallic sheen on its wings
landed on the edge of the nest. Its forewings are bright red, but from different
angles of view, their color changes from purple to blue. Characteristic thin
tails stick out on the hind wings. This butterfly has remarkable eyes – they
are large, as if at dragonfly. And she keeps the front pair of legs in air,
having folded the segments of the legs. This butterfly is an adult itotoptera,
whose caterpillars turn into predators in the later stages of development. Butterfly
wiggles its antennae to pick up scents around it. Hummingbird nestlings do not
react to it: this creature is unfamiliar to them, and the only defensive reaction
available to them is staying put. The butterfly as if watched the surroundings,
turning its goggle-eyed head, and then it unfolded its long proboscis and stuck
it into the body of the chick. The pointed chitinous tip easily cut through
the skin of the chick, and the butterfly began to drink its blood. This kind
of butterfly has an extremely unusual diet throughout its whole life cycle.
Chicks rarely form food to the itotoptera, but it grabs small insects and sucks
them dry.
Butterfly’s bloody feast was interrupted by the appearance of lantana mango
female. The bird pounced on the butterfly, causing it to fly up, saving its
fragile wings. It did not have time to do much harm to the chick, having drunk
only a drop of its blood. The chick will not die, but it will have to eat better
to compensate for the damage caused by the bloodthirsty butterfly. And the butterfly
itself has to make breathtaking somersaults and turns in the air, escaping from
the hummingbird female. Only take-off into the forest canopy saved the insect,
and the hummingbird female returned to the nest and began to feed the chicks.
Large birds develop much slower, and as they grow they have to deal with other
problems. In any case, an adult itotoptera butterfly does not threaten an illapa
chick that has grown up to the size of an adult bird. The young Saguanmachika
is already fully feathered, with fully formed flight feathers and tail. Gradually,
he learned to fly and now often leaves the nest, trying to hunt in the forest
canopy. So far, he is not good at hunting, but he has not yet got rid of parental
care, so he will not remain hungry. His parents feed only him alone, and he
develops normally, almost catching up with his father in size and weight. He
has enough strength to fully fly, and Saguanmachika cultivates his hunting skills
in games. He is training to fly from one tree to another, perching accurately
on branches and lianas, or flies between trees, making sharp turns. He likes
to frighten birds and monkeys, hiding among epiphytes, and then suddenly taking
off from shelter and causing a real explosion of frightened screams of forest
dwellers. But the most important and necessary games are those in which the
skills of catching prey are refined.
Walking across the nest, Saguanmachika found a dried duck wing with the remains
of plumage among the nest litter. This is not real prey, it is completely inedible,
but for the game, such a find will do just fine. Grabbing the find with one
paw, Saguanmachika rushed up, flapping his wings. He broke out of the forest
canopy and soared up into the sky – where only a few of the forest birds go.
He can look over the area for miles around – it is an almost continuous green
carpet of the forest canopy, cut through in some places by ribbons of rivers
and patches of lakes and swamps. Bright sunlight pours from the sky, and Saguanmachika’s
pupils narrowed almost to points. It is unlikely that the duck, whose wing he
holds in his paw, flew so high during its lifetime. At a height of several hundred
meters above the forest canopy, he opened his paw and dropped the duck wing.
It went down and Saguanmachika rushed after it and tried to catch it. He dived
after his toy, deftly caught the duck’s wing in the air with one paw and soared
up over the trees, flapping his wings. He does not hide, therefore, in response
to his maneuver, loud bird cries – alarm signals – were heard from the forest
canopy. Now Saguanmachika is not going to attack, so he does not pay attention
to the bird commotion somewhere below. Clutching the duck’s wing in his claws,
he soared into the sky again and threw his burden to catch it almost above the
very crowns of the trees. The young feathered predator repeated his maneuver
several times, but the last time the dead duck appeared to be more cunning –
the wing fell into the crown of the tree, and from there fell into the undergrowth,
where it was no longer possible to find it.
Having lost his toy, Saguanmachika descended into the forest canopy and perched
on the branch. He is young and strong, and his body requires new exercises –
in a matter of days, his connection with his parents will be broken completely,
and by this time he should be able to provide himself with food independently.
The best training in this case is an attempt to hunt on his own. Saguanmachika
looks around the surroundings – vision helps him find suitable prey. Thanks
to his sharp eyesight, he is able to discern even small birds scurrying among
the foliage, although this prey is clearly too small for a feathered eagle-sized
predator. On one tree, Saguanmachika noticed the body of a beast hanging under
a branch. This is a suitable size prey, and it seems that the animal does not
notice the hunter watching it.
The beast hung from a branch, having clung by paws with hooked claws, like a
sloth of the human era. However, this one is unrelated to a sloth: in addition
to its paws, a long tenacious tail, similar to a monkey’s one, is involved in
its movement. The beast moves slowly, moving its paws alternately and securing
itself with the help of its tail. With the help of long movable front paws,
he gathers leaves and brings them to its mouth. When the beast opens its mouth,
large incisors become noticeable – two in each jaw. And hard pointed quills
grow in the wool on the sides of the beast, protecting the beast from enemies
during unhurried walks at a dizzying height. This beast is a sidespiny
porcupine, a distant relative of myriyutherium, which has chosen a different
ecological niche in due course of evolution and is perfectly adapted to life
in tree crones. Such a beast with great difficulty moves on the ground, where
it appears purely by chance, but in the crowns of trees it finds everything
it needs for life.
Sidespiny porcupine is a slow and phlegmatic herbivore. It has no reason to
hurry – the leaves do not run away from under its muzzle. It doesn’t jump from
one tree to another like monkeys, and it doesn’t have very good eyesight. Therefore,
the beast does not notice the danger lurking among the foliage. Saguanmachika
watched the sidespine for a while, and then took off and rushed at his prey.
The predator swooped down on the sidespine from the air, stretching his paws
forward with his claws at the ready. However, the predator made one mistake:
he flaps his wings during the flight and flies on the prey too slowly. Sidespine
has poor eyesight, but excellent hearing, and it heard the rustle of predator
feathers in time. Its reaction is instantaneous: it immediately pulled itself
under the branch and pressed its stomach against it, slipping almost out of
the very claws of the predator. Saguanmachika flew under it, turned around in
the air and perched on thebranch, under which the sidespine is hidden. He is
not going to give up the prey, and has not yet exhausted the methods of attack
he has in stock. Saguanmachika tried to get the beast from above – standing
on one paw and stretching the other one, he tried to inflict a wound on the
porcupine. In response to this, the sidespine growled and began to defend itself,
waving its paw in the air. Standing on one leg, Saguanmachika recoiled so as
not to be hit by the claws of the animal, and almost fell down. He flapped his
wings, trying to stay on the branch, and at that moment the sidespiny porcupine
fluttered its paw again – this time much more successfully. It managed to grab
the feathered predator’s wing, scooped up some feathers and pulled the wing
towards it. At this point, the roles of the pursuer and the pursued changed.
Losing balance, Saguanmachika flapped his free wing and rushed sideways, trying
to free himself. He was lucky: he escaped, leaving only a couple of feathers
in the beast’s paw. His feathers hadn’t finished growing yet, so losing them
was quite painful. But this is nothing compared to what pain the claws and teeth
of the sidespine can cause, piercing the body, so Saguanmachika got off very
easy. He learned a lesson important for a predator: prey can defend itself,
so you need to kill it quickly and unexpectedly. Such lessons help the predator
become more dexterous and prudent, but sometimes they can end in injury and
even in death. This time the hunt failed, and Saguanmachika returned to the
nest – perhaps any of his parents will still agree to feed him today. And tomorrow
there will be a new day, and perhaps, young predator will succeed to hunt successfully.
The nest of illapa is a gigantic construction of thick branches and twigs that
has been used by a pair of birds for many years in succession. Illapas have
significant longevity, and the same nest can exist on a tree for several decades
in a row, and even be inherited from one pair of birds to another. Unlike them,
kurekure parrots do not use their nest for so long, although they put a lot
of effort into its construction: the tree-trunk hollows they gnaw out in wood
are in great demand among forest dwellers, and a pair of parrots is far from
always able to repel uninvited guests out of their hollow. Sometimes the birds
are met by a whole swarm of angry bees, which the kurekure has neither the strength
nor the desire to resist.
The young kurekure family worked together to quickly deepen and widen the hollow
to a suitable size, and the female began laying. She has already laid two eggs
on a bed of wood dust. Then for a whole month the female will incubate the clutch,
and the male will feed her with fruits, berries and nuts. When the chicks will
hatch, both parents will feed them for more than two months before the young
birds leave the nest. And even after that, young birds will require some care
from adult birds before they become completely independent. And only after a
few years, young birds will reach maturity and create their own families, if
they can live up to this time. But kurekure has a very long age – an adult bird
can live for several decades.
To give rise to a new generation of her species, the kurekure female must make
a full clutch – she nneeds to lay one more egg, and only then she will begin
incubation. In the meantime, parrots feed together and protect their territory
from others, warning them of their territorial claims with loud rattling cries.
The kurekure nest, located in a hollow at a height of several tens meters above
the ground, is perfectly protected from many predators, but not from all.
The smell of fresh bird clutches simply irresistibly attracts one inhabitant
of the forest canopy. It is a winged creature, so it feels at home in the forest
canopy. It is able to fly several kilometers in search of its favorite food
– bird eggs. And the shells of eggs may be easily opened by its strong sharp
teeth. This inhabitant of the selva is a bat – forest broad-toothed bat. Unlike
a huge number of chiropteran species, the forest broad-toothed bat flies during
the daytime. Its flight is fast and very maneuverable – the animal is able to
turn around in the air and change direction of the movement suddenly. This species
has relatively large eyes, although the forest broad-toothed bat has good echolocation
abilities. However, the most developed sense in this species is the sense of
smell. The forest broad-toothed bat smells fresh eggs with liquid content from
afar and can accurately distinguish them from eggs with an already developed
embryo. Its dental system is greatly reduced – in each jaw, there are only two
pairs of molars and one pair of very developed incisors.
The forest broad-toothed bat is a cautious and secretive creature. When approaching
the nest, the bat tries to be as little visible as possible. The animal lands
on a tree above or below the nest and crawls up to it, trying not to betray
its presence. If a bird finds the broad-toothed bat, the bat cannot stand the
fight: the claws and beak of the bird will easily tear the animal’s flying membrane
– and this is sure death. Therefore, while the kurekure female climbed into
the hollow and bustles about there, the bat hid next to the nest. Not far from
the hollow where kurekure nests, an epiphytic orchid grows on the bark, stretching
a whole “beard” of aerial roots in the air. The forest broad-toothed bat climbed
under them and now sits motionlessly, disguised among the shadows of aerial
roots. The pattern of the animal’s coat helps it to mask: a dark stripe stretches
along the back, and some more spots are scattered on the sides. Therefore, an
animal sitting motionlessly is almost impossible to distinguish from an exfoliated
piece of bark. The specific diet has left an imprint on the behavioral features
of this animal: the broad-toothed bat can wait a long time and choose the right
moment to attack the bird clutch.
The kurekure female examined the clutch once again and climbed out of the nest.
A new egg is developing in her oviduct; when she will lay it, the clutch will
be complete, and incubation can begin. Having got out of the nest, the kurekure
female took off. From somewhere in the forest, the male called her, and the
female answered his call. She flew off to feed, confident that the clutch is
safe. However, this is far from being the case: having felt that the bird had
left the nest, the broad-toothed bat perked up, got out from under the orchid
bush and quickly crawled into the hollow. To eat and to stay alive after that,
it must act quickly. Clinging by the claws of its hind legs, the bat carefully
descended into the hollow and crawled to the eggs lying on a bed of wood dust.
Having sniffed the eggs, it was convinced that they are fresh, and incubation
had not yet begun. The bat turned one of the eggs with the pointed end towards
itself, opened its mouth wide and bit off the top of the egg with its blade-like
incisors. A viscous egg white began to flow out of the hole, but the bat stuck
into the egg its long tongue equipped with villi along the edges, and began
to lick quickly the contents of the shell. If there were an embryo in the egg,
this would be done with great difficulty; broad-toothed bat attacks clutches
of already incubated eggs only under the threat of starvation. This species
is an example of a very strict food specialization among bats: this feature
allows it avoiding food competition with other bat species, but at the same
time increases dependence on a single food source and limits the species range
only to those areas where birds can nest all year round.
In the process of evolution, the broad-toothed bat adapted to eating bird eggs
very quickly: in just a few minutes, the animal dealt with both eggs. Their
liquid contents had been moved into an elastic stomach, and after a meal, the
belly of the bat is greatly swollen. With such a burden, it is difficult for
the animal to move: it crawls, rising on its wings, and looks like a big hairy
spider. Clinging by its wings’ thumbs, the broad-toothed bat climbed up to the
entrance to the hollow, hopped over the edge with difficulty and quickly crawled
back to the shelter under the roots of the orchid.
Once safe, the broad-toothed bat began to prepare for flight. Being startled
right now, it is unlikely to be able to fly for a long time: the content of
its stomach is too heavy. In the process of evolution, this bat acquired the
ability to quickly absorb large volumes of liquid food and process it skillfully.
As soon as the bat hung in the shelter, water began to be urgently pumped out
of its swollen stomach, and the content of the stomach gradually thickens into
a paste-like mass. At the same time, the load on the kidneys increased: they
began to remove excess water from the blood, quickly filling the bladder. A
few minutes later, the bat emitted a portion of liquid urine, climbed out of
the shelter and easily took off. The excess cargo is dropped, and only concentrated
fresh food will be delivered to the colony. Fluttering its wings like a monstrous
fluffy butterfly, the forest broad-toothed bat disappeared in the forest canopy
– it hastens to return home.
Having returned from feeding, the female kurekure climbed into the hollow and
saw that only empty shells remained of her eggs. Therefore, the last egg she
will have to lay tonight is actually the first – but already in a new clutch.
From two previous eggs, only the shells remained, which she ate immediately
– the calcium carbonate contained in them will be used to the formation of the
shell of new eggs. Now she will have to spend some more time to make a full
clutch, and to begin hatching eggs about a week later. In tropical climates,
where there are no distinct seasons, this delay is not significant.
The forest broad-toothed bat hurries home. This bat species has an excellent
memory, and a map of the area is saved in its head, showing the location of
the colony and numerous bird nests known to it. Getting food, the broad-toothed
bat not only prowls at random, being guided by the smell of bird clutches, but
also checks already known nests for the presence of fresh eggs. Now it was lucky:
it sucked out two eggs of a large parrot at once, and this is a good booty.
The bat makes its way to one of the disturbed areas of the forest on the river
bank, where, among the broad-leaved pioneer vegetation, graceful crowns of palm
trees with fanlike leaves rise on flexible trunks. These plants are among the
pioneers to settle in areas of damaged forest cover, and they grow rapidly,
finishing their lives before they are drowned out by trees of other species.
The broad-toothed bat flew under one of the fanlike leaves, clung to it with
its claws, and crawled towards its middle. Near the point of attachment of the
leaf to the petiole, its veins are gnawed a little bit, so the edges of the
leaf hang down like a tent. In the shade, under the cover of such leaves, several
of its relatives hang upside down. The colony of broad-toothed bats under this
leaf numbers several dozen individuals, but it is only full in the late afternoon.
Now many of the members of the colony have flown off in search of food, but
these individuals have already managed to return: they were not lucky to find
food during the morning flight. Small animals have a very high metabolic rate,
so starvation for a long time is fatal for them. A relative arriving with a
full stomach is of interest to hungry individuals. One of the animals crawled
up to a well-fed one hanging nearby, and began to lick its face and chin. This
is a request for support, and instinct dictates not to leave it unattended.
Each well-fed individual gathers food not only for itself, but for the entire
colony. Bird eggs represent a scarce resource, so the exchange of food allows
animals to survive. The beasts connected their lips in a kind of “kiss”, and
the well-fed animal regurgitated part of its booty into the mouth of the hungry
one – a concentrated paste from a mixture of egg yolk and white. Today, not
all animals were lucky in the search for such specific food, and mutual assistance
allows them to get a chance to survive. This is one of the many survival strategies
in the selva.
… It’s been 3 years. Ajuricaba grew up, matured and began an independent life.
He had already reached the size of an adult beast, and gradually mastered the
hunting techniques used by his mother. This is enough not to starve to death,
but the hunting technique will still have to be improved. Unlike Tisquesusa,
Ajuricaba left his mother on time and without unnecessary emotions. As he grew
older, his bond with his mother gradually weakened. He spent more and more time
alone, and sometimes left his mother for a day or two to explore the territory
or hunt a little on his own. At this time, another event happened that became
the impetus for the beginning of his independent life: a few months before their
separation, his mother went into heat, and she became pregnant. At the beginning
of her pregnancy, her attitude towards Ajuricaba did not change: she still paid
attention to him, shared prey, licked him after eating and let him sleep under
her side. But the new cub grew in her womb, and she began to treat Ajuricaba
differently: at first she did not let him approach the prey until she had eaten
her part, and then she simply began to drive him away from herself, allowing
only sleeping in the den, but away from her. Finally, one morning, his mother
just beat him hard and expelled him out of the lair. The last thing Ajuricaba
received from his mother was a fresh painful scar on his side. Thus a new stage
in his life began – the youth, full of dangers and wandering through the jungle
in search of food and his own territory. The fresh scar bleeds and hurts a lot,
and Ajuricaba stops from time to time to lick the wound.
Ajurikaba’s life has completely changed: he has nowhere to go, nowhere to wait
out the night, and now during the hunt he must rely only on his own strength.
Several times he managed to catch some chickenfeed like small rodents, lizards
and frogs, but such prey can only briefly drown out the hungry pain in the stomach.
Large young jaguarete needs larger prey.
From the very morning, Ajuricaba wanders through the forest, sniffing and listening
to sounds. He tries to locate prey using all his experience. A keen sense of
smell helps Ajuricaba to detect the presence of possible prey even in dense
thickets. While Ajuricaba is still in his mother’s territory, where he knows
all the paths and places for setting up ambushes. Along one of the paths, he
came to the bank of a wide forest river – one of the many tributaries of the
Amazon and Hippolyta river systems. Broad-leaved grasses grow here, and it is
possible to find many places to set up an ambush. There are many animal trails
descending to the river, and here you can meet terrestrial inhabitants who come
to the watering place, as well as river inhabitants who come out to graze on
the shore. He feels a smells of the old barocavia dung: a herd of these animals
came ashore to graze a few days ago. However, an adult barocavia is a dangerous
rival even for an adult jaguarete, and a young beast would hardly prey on even
a cub of this monstrous rodent: parents guard their posterity ferociously, and
they are able to trample down to the ground anybody who would dare to hunt their
cubs and would appear insufficiently fast or careful.
In addition to barocavias, other animals can be found on the riverbanks. Aquaguanas
bask on a tree trunk that has fallen into the water – these are large water
lizards. They are herbivores, but their tails are terrible weapons capable of
inflicting strong blows. The meat of aquaguana is delicate, but it will not
be possible to get one of the reptiles unnoticed: to do it, it is needed to
go to an open place where they will notice the danger and hide in the water.
Ajuricaba can swim and has already survived three floods, but prefers not to
get into the water unless absolutely necessary. But on the shore, among the
thickets of marsh grasses, a herd of small herbivorous mammals – jakarawas –
grazes. The barocavias have eaten the swamp plants when they have reached their
full size, and from the rhizomes left in the soil young shoots grow – for the
sake of them the jakarawas came here. The herd of these rodents consists of
the large, old, experienced male, three of his females and their cubs. The oldest
female has been living with this male for seven years, and the youngest one
joined his harem only three years ago and has already brought a young “heritor”
to the patriarch. Striped-skinned cubs frolic around adults, occasionally tasting
the food that they nibble. The adult animals are busy feeding, and only occasionally
raise their heads and look around. They rely on hearing: by the voices of forest
animals, they determine the appearance of danger.
Ajuricaba watches the herd from hiding. He is very hungry, but the experience
gained during his life with his mother teaches him to be patient. He watches
the jakarawa herd, keeping still, and the foliage hides from the curious glances
of the forest inhabitants his bright skin, red with ring-shaped black spots.
Only the tip of the predator’s tail twitches, betraying his excitement. Since
he left his mother, he has managed to eat only a few small animals, and this
is his first independent hunt for larger game.
His first independent hunt almost ended in failure. It turned out that he is
not yet a very experienced hunter, because he did not take into account the
direction of the wind. The old jakarawa male, who is always on the alert, took
some steps away from the herd and felt his smell. Flaring his nostrils, he gave
a loud signal of danger and rushed towards the water. His entire family obediently
took to their heels, not even understanding what he smelled. Ajuricaba rushed
after them, more by chance than by any definite plan of action. However, he
was lucky all the same: the smallest jakarawa cub, while running, stumbled upon
a snag hidden among the silt and sprained its leg. The female ran a little ahead
and did not have time to protect her cub. With a few quick soft leaps, Ajuricaba
overtook the baby jakarawa, grabbed it by the throat with his teeth, shook and
began to choke it. A few convulsive movements – and the body of a jakarawa cub
dangled lifelessly in his teeth. Turning around, Ajuricaba dragged his first
significant prey into the thicket. This, of course, is not the heaviest lunch
in his life – the jakarawa cub is too small, and the predator will satisfy his
hunger for only a few hours. Another thing is important – Ajuricaba passed the
test as a lone hunter, although his success was more of an accident.
The family of jakarawas, frightened by Ajuricaba, swam across the river and
found themselves about two hundred meters from the scene of the tragedy. The
animals calmed down a bit, looking at the spotted predator that remained on
the other side. And only a young female, who has lost her cub, pitifully calls
for the baby, but he will never respond. It took about an hour before she stopped
her vain calls and realized that she would never see her cub again.
Hiding in the thickets, Ajuricaba feasts. He tears apart the thin skin of the
jakarawa cub with his teeth and greedily devours pieces of still warm delicate
meat. He swallows it along with bones and wool – he will soon regurgitate the
undigested remains. Hunting with his mother was more successful, but during
her pregnancy she began to eat more and more meat, leaving for Ajuricaba only
scraps that barely satisfied his hunger. Now no one will dare to take away his
lawful booty from him – it belongs only to him.
Mastering an independent life, Ajuricaba tries various ways of hunting. Part
of the skills he received in childhood while playing with half-dead prey, which
was brought to him by his mother or during a joint hunt with his mother, when
he had already grown enough and got stronger. But he will have to learn a lot
from his own experience. And hunger turns out to be a better teacher for a predator
than even his own mother – it teaches him to hide better, sneak quieter and
kill faster. And the hungry beast also tries to hunt even such animals that
the mother never brought.
Passionflower vine tangles around a tree. In human epoch, the ancestor of this
species was a fragile plant with thin climbing stems. Its descendant of the
Neocene epoch has changed a lot: it is a large perennial liana with a thick
woody trunk, easily growing from the ground to the forest canopy. Among the
palmatisect leaves large bright flowers blossom, each of them living for one
day only. Their bunches are amazingly beautiful and visible from afar. During
their short life, the flowers must be pollinated, so they attract insects and
birds with their bright petals. A variety of butterflies circle around the passionflower
flowers, and hummingbirds and solitary wasps of various species flash with a
metallic sheen in the rays of sunlight. Other plant species turn their flowers
into clever traps for pollinators, but passionflower has taken a different way,
and its widely opened flowers regale with nectar even the most generalist pollinators
– in this case, the probability of at least casual carrying of pollen from one
flower to another increases.
Tarukuwa ants crawl on the stems and leaves of this plant. Giant passionflowers
represent an inexhaustible source of food for them. In the thickets of polomiki
lantana, tarukuwa ants seek out colonies of pokopoko treehoppers and gather
their sweet secretions, but here they do not need an intermediary: numerous
extrafloral nectaries on leaf petioles produce in abundance the sugary secretions
edible for ants. Tarukuwa ants harvest them alongside with examining the leaves
of the plant, where they catch and eat the larvae of insects that harm passiflora
vine.
Itotoptera butterflies fly above the large flowers of passionflower, sparkling
with their wings in the sun rays. They are also attracted by passionflower flowers,
but by no means by their nectar: because of it, small insects land on flowers,
which are attacked by adult itotopteras. An adult butterfly of this species
is a predator, but rather unspecialized. While not comparable in killing skills
to praying mantises, it also grasps small prey with its modified forelegs and
holds it while sucking it out with its proboscis. Itotoptera is an enemy of
various butterflies, with which it can be compared in flight speed, and other
insects with relatively soft body covers. It easily sucks out large aphids,
mealybugs and other inactive insects with soft body covers, but avoids attacking
bees and wasps armed with sharp stings. It is a specialized butterfly species,
but not too effective as a predator, because it uses only a limited range of
prey items.
In a tropical climate, passionflower blooms and bears fruit all year round.
Among the foliage, large berries ripen, attracting herbivorous vertebrates of
the forest canopy. Monkeys, marsupials, rodents, as well as parrots and other
birds – they all feed on the juicy fruits of passionflower and spread its seeds
around the neighborhood. Many of them eat the fruits of the plant right in the
forest canopy, but a significant part of the fruits overripe and fall to the
ground. Forest dwellers are well aware of this, and often descend into the undergrowth
in search of fruits. There is one tempting property in these fallen fruits:
the juice in them is partly fermented by yeast, so they contain a small amount
of alcohol. And this circumstance attracts a flock of kurekure parrots to the
undergrowth. Screaming and quarreling with each other, birds roam the ground
and eat fallen overripe passiflora fruits. Several kurekures climb through the
leaves of the vine in the forest canopy, and their careless movements cause
overripe fruits to fall. As they plop down on the ground, the nearby parrots
growl in alarm, but quickly calm down, convinced that it is only a fruit.
A small amount of alcohol in overripe fruits makes the parrots a little less
cautious, so they do not notice how Ajuricaba creeps very carefully through
the thickets towards them. He hasn’t eaten anything bigger than a mouse in two
days, and now he’s so hungry that he’s ready to eat anything. A large parrot
could be a good snack, so Ajuricaba decided to get at least one bird from the
flock. His spotted coat does not stand out among the vegetation of the undergrowth,
and Ajuricaba sneaks cautiously towards the feasting parrots.
The cries of alarm of the parrots were suddenly heard – none of them could have
noticed Ajuricaba hiding in the bushes. Everything happened swiftly and unexpectedly:
a huge shadow swept right over the ground, a loud cry of a captured parrot was
heard and colorful feathers flew. Parrots had been frightened off by Saguanmachika
– he also watched this flock from a hiding place among the vines, and at the
right moment grabbed one of the largest birds. One of the birds, screaming loudly,
rushed towards the hidden Ajuricaba, and he almost unconsciously jumped up two
meters, knocked it down with one blow of his paw, pressed by his paw against
the ground and tore off its head. Other birds flew off screaming in different
directions, but both predators got prey, and it makes no sense for them to continue
hunting. A massive jaguarete rarely shows such agility, but now Ajuricaba is
hungry, so he dared to make such jump, and his attempt had been rewarded in
full degree.
Ajuricaba ate the parrot with pleasure – the meat of the bird is warm and delicate.
Nevertheless, the hunger had not receded anyway – in order not to suffer from
hunger, the predator must eat at least ten kilograms of meat in one sitting.
In addition, feathers make eating such prey inconvenient: along with the meat,
Ajuricaba swallowed a lot of inedible feathers. However, he ate the parrot almost
entirely, leaving only bony legs and wings. He even gnawed the bird’s skull
and ate the brain. Hunger no longer cuts the stomach, but this is not enough,
so Ajuricaba continues to search for food. He went out to the river again and
walked along the bank, trying to look for bigger fish in the river, or some
other large prey. He saw aquaguanas basking on the shore, but the reptiles noticed
him in time and rushed into the water, where it would be much more difficult
for Ajuricaba to catch them.
The places Ajuricaba roams are unfamiliar to him. He has already left his mother’s
territory and now keeps to the border “free lands”, which are new to him. Half
an hour later, he was lucky to find an almost dried up small pond, which was
connected to the river bed during the overflow. Ajuricaba carefully descended
to the water, stepping on wet clay soil, and noticed a half-meter long fish
near the shore. Noticing him, the fish swam away from the shore, but the size
of this pond was too small for it to take refuge in the depths. Therefore, Ajuricaba
entered the water and nevertheless managed to get a fish: with one precise movement
of his paw, he threw it ashore, killed it with another blow of his paw, and
began to eat it greedily right with the bones. After the meal of the predator,
only a large bony head with toothy jaws remained from the fish.
Young Ajuricaba, after he left his mother, needs to conquer his hunting territory.
His species is the top predator in the ecosystem, and each member of the species
needs a vast feeding area. Now Ajuricaba is going through hard times: he is
starving and forced to eat any random prey. During the day he manages to eat
several small animals, but this only allows him not to die of hunger. He is
forced to hunt in unfamiliar “free lands” that separate the possessions of adult
relatives, and he does not have a permanent lair. However, Ajuricaba instinctively
seeks to win back suitable territory for living. He just needs to act more decisively.
After several days of wandering, Ajuricaba invaded the territory of a large
adult female. He did not meet with the mistress of the territory directly, but
he smelled the scent of her marks. Ajuricaba sniffed the trees and found the
markings of this individual, old and not updated for a long time. This circumstance
finally tipped the scales in favor of the decision to invade, and he decided
to act openly and straightforwardly. To begin with, Ajuricaba marked the border
of the territory with his own scent, urinating profusely over the marks of the
female. Sniffing his own fresh marks, he began walking around the area. This
area seemed to him very good for hunting: Ajuricaba constantly finds trails
and tracks of various animals, and among them there are many those that his
mother hunted. When he feels the smells, images of animals come to his mind
and he remembers the taste of their meat. Near the river, Ajuricaba found traces
of jakarawas – here they are very numerous, in several family groups. He sniffs
at the footprints on the river bank, inhaling the smell of these creatures with
pleasure. He loved jakarawa meat when he was a cub, and his mother often dragged
these rodents after hunting. After being banished from his mother’s territory,
he rarely was able to eat this delicious meat, and here he feelt the smell of
a whole herd. In it, he clearly distinguishes the smells of adults and young
animals, and they are fresh – the herd is somewhere nearby. Suddenly, somewhere
in the thickets of reeds, a splash was heard, and Ajuricaba froze. Then he softly
hopped into the thickets and began to watch.
Ajuricaba was not mistaken: the jakarawas came ashore in a whole herd – a male,
several adult females and cubs of various ages with striped skins. The beasts
feed by browsing coastal vegetation. The wind blows away from them towards Ajuricaba,
and he carefully sneaks up on them. A couple more meters creepingly, and it
will be possible to attack.
... The blow to the side was very strong – Ajuricaba fell to his side and howled
in pain, and a large adult female with bared teeth stood above him. The mistress
of the territory accepted the challenge and came to punish the stranger. Hearing
predators fighting in the bushes, the jakarawas rushed away, uttering alarm
cries, and disappeared into the water. However, the female owner of the territory
is not worried about a failed hunt. Now the main thing for her is to confirm
her right to the territory and drive away the impudent and rather strong stranger.
The prey comes and goes, and another time, sooner or later, its hunt will be
successful, but she cannot afford to lose her hunting territory – along with
it, she can lose all the prey that is found there, which is much worse than
one accidental failure.
The female rushed at Ajuricaba again – it seemed to her that he rose to his
paws too slowly and was in no hurry to run away. With a blow of her paw, she
tore the skin on his back, leaving three deep parallel scars from her claws.
Instincts forbid these predators to injure the congener opponent in the head,
but even the blows of the claws of this female on the back and sides are very
painful: she is larger and stronger than Ajuricaba. And the increased aggressiveness
of this female is explained by the fact that her offspring are growing up in
her den, and she will not tolerate the presence of a stranger even on the border
of her hunting territory. Therefore, the marks on the border territory were
old – the female does not go far from the lair. Several marks left by Ajuricaba
in the depths of her territory forced her to come out specifically to search
for and expel an impudent stranger, and she managed to do it quite fast.
Ajuricaba fled from the territory of the female, despite the pain from his wounds.
His back is wounded, and several deep scratches bleed and hurt a lot when the
beast makes sudden movements. He managed to find a secluded place in the bush,
and he lies low for several days while the wound heals. The wound itself is
not dangerous, and Ajuricaba licks it, cleaning of fouling, but the feeling
of hunger is great. On the second day after the injury, he managed to catch
a lizard, but it was given to him at the cost of great effort – he hunted, overcoming
back pain. During the hunt, the wound opened and began to bleed, so Ajuricaba
had to lick it. He hardly managed to make a jump, killed the lizard and ate
it along with the bones. This prey briefly satisfied his hunger, but after a
few hours the feeling of hunger again made itself felt. For several days, Ajuricaba
sleeps for a long time – so he feels less hungry. In his dreams, fragments of
memories come to him, and the paws of the sleeping beast twitch a little – Ajuricaba
dreams of successful hunts and a plentiful feast after them.
The forest canopy, like undergrowth, is divided into many individual territories,
and the largest among them belong to the illapas. It is impossible to draw clear
boundaries here, and the owners of the territories make overflights of their
possessions and indicate their territorial claims with loud calls. A large young
illapa female hunts in the territory belonging to the male Saguanmachika. She
managed to catch a small monkey, and she perched on the branch of a tall tree
and began to butcher her prey, peeling off shreds of skin and tearing off the
meat.
Saguanmachika regularly circles his own territory. Unlike Ajuricaba, he managed
to find a place suitable for living rather soon, and now he is ready to drive
away any stranger who decides to encroach on his right to own this territory.
Keen eyesight allows him to notice the intruder easily, and his sharp beak and
pointed claws have already helped him to stop attempts to expel him from the
inhabited territory for several times.
From afar, he noticed the congener hunting in his territory, and flew to restore
his ownership. He noticed in which part of the forest the intruder had attacked
its prey, and he flied up higher to cover as much territory as possible. In
one of the trees, he noticed the intruder eating a monkey, and circled over
it, descending gradually. Saguanmachika quickly noticed that a female appeared
in his territory and perched on a nearby tree. The female also noticed him:
she opened her wings, displaying herself, and covered her prey with them, as
if trying to hide it from the owner of the territory. In fact, she shows the
determination to protect her prey, and Saguanmachika has to be more careful
if he wants to get to know her better. In illapa, the female is larger than
the male, and may mistake the careless approach of Saguanmachika for an encroachment
on her prey. Such a misunderstanding can lead to a conflict with unpredictable
consequences for both sides. Therefore, Saguanmachika does not fly from his
tree and patiently waits for the female to finish feeding.
The female is a subject of interest for Saguanmachika. She is young and may
soon be ready to breed. Saguanmachika himself has already reached puberty, and
this explains his interest in the female. If their meeting had taken place six
months earlier, he would have tried to drive the female away, and even fight
with her. However, now he treats her completely differently, and this is in
the order of things for him. He did not banish the female from his territory,
but simply took off from the tree and flied about his business.
In large birds of prey, aggressive and armed with sharp beaks and claws, the
process of bringing together future breeding partners takes a very long time
and is gradual. They should at least get used to each other’s presence, and
only after a while they can try to establish closer contacts. Saguanmachika
took up courtship in earnest. In the morning he managed to get a kurekure parrot
once again. With prey in his claws, he flew up over the forest canopy and made
several circles over his territory. He noticed the female flying over the trees
in search of prey. This is just the right moment to try to move on to a closer
relationship. Having flown higher, Saguanmachika flew over the female, unclenched
his claws and dropped his prey to her. The female had taken in the situation
immediately – she rushed forward and with a deft flung with a coup picked up
the dead parrot. Having gained the prey, she perched on a tree and began to
tear the feathers on the prey. Saguanmachika perched on a nearby branch, and
the female looked at him appraisingly. She spread her wings, as if protecting
her prey, but Saguanmachika noticed a certain formality in this movement. The
female is still wary of him, so Saguanmachika is in no hurry to get close to
her. Now she simply does not fly away from his territory, and that is enough
for him.
Gradually, the birds become closer to each other. The female shows less aggression
when Saguanmachika is around and willingly accepts his gifts. A few days after
they met, the female no longer showed aggression when Saguanmachika perched
on the same tree where she ate another prey. And one day came, when Saguanmachika
dared to preen the plumage on the head of this female. She didn’t mind.
Ajuricaba wandered for a long time in the border areas. The wound got from the
female has healed, and it actually does not hurt anymore – only thin strips
of bare, hairless skin remained in place of the scars. The meeting with this
female has become another lesson for Ajuricaba: now he behaves much more carefully,
does not leave signs of his presence and tries not to provoke the owner of the
territory into a conflict. Intruding the alien territory, Ajuricaba tries to
bury his droppings and urine, sniffs out traces of the owner of the territory,
watches it and tries to get to know it better. For several times, Ajuricaba
failed – the rivals were clearly stronger, and he tried to leave their possessions,
avoiding their aggression. He does not need extra wounds – they deprive him
of the ability to hunt normally for too long.
Within about two weeks of searching, Ajuricaba walked around the territories
of almost all the animals that lived right next to his mother. Finding no way
to conquer the territory of any of them, he began to inspect the lands, previously
completely unfamiliar to him – along the outer edge of the possessions of his
mother’s neighbors. He carefully sniffed the marks of his kindred at the borders
of the territories, trying to extract as much information as possible from their
scent. He met the scent marks of a strong adult male, a female in estrus, a
young mature male a little older than Ajuricaba himself, and of several other
animals, the meeting with which did not bode well for him. And one of the smells
seemed very promising to him. It is a faint smell of a male, of already quite
old one – a smell that has not been renewed for a long time. It tells Ajuricaba
that the owner of this hunting area rarely claims his rights to the territory,
so it is possible to attempt to conquer its possessions.
Ajuricaba acts covertly. He entered the territory of the old male and walked
along it, assessing its quality. He noticed many tracks of herbivorous animals,
he saw several myriyutherium porcupines, and once frightened a herd of jakarawas,
unexpectedly coming straight at them from the thickets. In the end, he found
the footprints of the owner of the territory and followed them. Ajuricaba is
a good tracker, and it was not difficult for him to track down the owner of
the territory – the male, who inspired fear in the neighbors in his best years.
Hidden in the bushes, Ajuricaba watches him. This male is clearly in the decline
of his power. He was a perfect fighter, and many signs of overgrown scars are
seen in his fur. His ears are torn, and half of one ear was completely bitten
off by someone. Wool is already getting a light shade – gray hairs appear in
it. And the gait of the beast already lacks the confidence inherent of the animal
in its full strength. Ajuricaba watched the owner of the territory for a bit
and began to act. He went to neutral territory and began to destroy the smell
of this male wherever he met it. He buries the marks of the old male and puts
his own marks with urine atop of them. Where the old male marked the tree trunk
with his urine, Ajuricaba puts his scent mark higher and more abundantly, and
then peels off the bark above the mark with his claws. These are obvious challenges,
and Ajuricaba is preparing for the most important thing – for a direct meeting
with the owner of the territory. He gradually increases the number of signs
of his presence, and during the inspection of his marks, he finds the old male’s
fresh marks far from everywhere.
The last battle for territory happened unexpectedly for both sides. Ajuricaba
was walking around the territory of the old male along the bank of one of the
forest rivers when he suddenly smelled the fresh blood of a jakarawa. There
are usually numerous small predators in the territory of the jaguarete, and
when meeting with them, the jaguarete often uses the right of the strong and
takes away their prey. Ajuricaba is hungry, and has successfully performed this
technique more than once. So he began to search for the source of this smell.
However, he found something more – the owner of the territory himself, the old
jaguarete devouring a recently killed jakarawa. Ajuricaba did not hide: he went
out to the owner of the territory openly, growling and whipping his tail from
side to side. The old male growled in response, and Ajuricaba saw that two of
his fangs were broken and some of his teeth were missing. Ajurikaba took a few
steps towards the jakarawa carcass, then turned his back to the nearest tree
and urinated, claiming territory. His scent was well known to the old beast,
and he took a couple of steps towards the challenger. But it is clear that he
is not confident in his abilities: the old male hesitates, tries to impress,
but is not ready to back it up with actions. Therefore, Ajuricaba immediately
went ahead, jumping on the old male, and struck him with a paw in the shoulder.
Red blood appeared on the old feline’s skin, and his roar turned into a howl
of pain. He took a step back, and Ajuricaba began to advance on him, trying
to deliver another blow, first with one paw, then with the other one. He managed
to severely scratch the old male’s paw, and he began to push him away, driving
him from the jakarawa carcass. Ajuricaba senses the weakness of the old beast,
so he launches an offensive, preventing the old male from gathering his strength
and fighting back. The old feline’s determination has vanished: he no longer
intimidates Ajuricaba, but simply snaps back, retreating gradually. It is already
obvious: he is losing the duel. From the scratches on his skin, blood flows,
soaking the wool, and he is clearly not able to fight back against Ajuricaba,
the young and strong male.
The result of the fight was predictable: the old male left the half-eaten jacarava
carcass and retreated. In fact, he lost not only his prey – there were already
too many scent marks left by Ajuricaba on his territory. Having defeated the
old male, Ajuricaba began to greedily eat the carcass of the jakarawa, which
had been killed by the already former owner of the territory. He feels like
a winner and has just secured a great future for himself in the coming years.
He does not pursue the departing old male and he does not care what happens
to him – let him survive as best he can. If he appears on the territory now
belonging to Ajuricaba, there will be a fight in which he can lose not only
health, but also life.
The basin of the great rivers of South America is a place where forest and river
complement each other, forming unique habitats rich in life. Here, terrestrial
animals often forage near or in water, semi-aquatic animals feed on land, and
even the permanent inhabitants of the river receive their share of the riches
of the forest.
Jakarawas are very fond of feeding on polomiki lantana berries, although this
plant prefers to grow away from water, in places not inundated by the river
during floods. For the sake of berries, jakarawas can make risky forays into
the forest. A herd of these rodents moves along the path leading to the lantana
thickets. Such paths are most often laid by myriyutherians, for which polomiki
lantana is one of the important food resources. The male leading the herd knows
the way to the lantana thickets – he has already used it many times. In dense
undergrowth, he is guided mainly by the smell that this plant spreads. The forest
is alien to these rodents, although their ancestors lived there. Far from the
saving river, jakarawas keep very carefully: they constantly listen to the sounds
of the forest, look around and sniff the air. When danger appears, they will
not be able to hide in the water, and they will have to rely only on their running
speed. The graceful physique and long legs allow these animals to develop high
speed, but they are not able to run for very long – in their usual environment,
they would prefer to dive into the water as quickly as possible.
Soon a herd of jakarawas reached the thickets of lantana, and the animals began
to eat fruits from the bushes. Some beasts prefer to pick the ripest fruits
from the ground, others prefer ripen purple fruits still hanging on the branches.
However, not everything that looks like the ripe fruit of this plant is the
fruit.
In nature, not a single species of living organisms lacks the parasites and
symbionts. Even polomiki lantana, whose tissues are laced with poison, is the
host of several fungi species. A special kind of yeast is responsible for the
accumulation of alcohol in the fallen fruits of the plant; rust fungi settle
on living tissues, and hyphae of the parasitic lantana false fruit fungus grow
in the loose tissue in the core of the plant stem. This fungus parasitizes in
the tissues of the shoots of the plant almost imperceptibly, causing only some
dwarfing and lag in the growth of the shoots of the host plant. Flowers also
bloom on these shoots and fruits ripen, and a visible manifestation of the harm
of this fungus to the plant is the lower yield of the affected shoot – more
ovaries fall from it and fewer fruits ripen. However, animals still find something
to eat on these branches. In some places of the stem, the mycelium of the lantana
false fruit fungus grows through the tissues of the shoot of the host plant,
forming nodules under the bark. In these places, the bark bursts, and bubble-shaped
fruiting bodies on stalks, containing a loose spore-bearing mass inside, appear
from the cracks. They gradually increase in size, acquiring an elastic texture
and purple color. The mature fruit body accumulates a significant amount of
sugar and becomes as tasty as the real fruits of the plant. The fruiting bodies
of the false fruit fungus mimic the fruits of the polomiki lantana so skillfully
that the animals, it seems, practically do not distinguish them.
When jakarawa or myriyutherians eat the fruiting bodies of the lantana false
fruit fungus, their gastric juice partially dissolves the shell of the spores
of the fungus, contributing to their germination. Animal’s droppings that have
fallen on soil pierced with polomiki lantana roots provide an excellent medium
for spore germination. If it is myrieutherium droppings, then it is more likely
to appear somewhere in the thickets of lantana, and the germinating mycelium
of the fungus easily finds the roots of the host plant. Jakarawas, after feeding
on lantana fruits, go far from the thickets, and the spores of the fungus germinating
from their droppings most likely will not find a suitable host.
While the jakarawas were feasting on the fruits, they lost their usual natural
caution. The animals looked around less, and the rustle of lantana leaves did
not allow them to hear the sounds of the forest. Therefore, the appearance of
a large beast, similar to a small bear, the omnivorous macrokupara, was a big
surprise for them.
An old jakarawa male sensed the danger in time – he noticed the animal hiding
in the thickets and gave a warning signal to the whole family. Hearing it, the
females with cubs quickly ran away, making high jumps. The head of the herd
was left alone with the enemy. Jacarawas are in the environment unusual for
them, so the male has to fight with a predator, although near a reservoir he
would most likely just jump into the water and would not risk his life. But
now he must by all means stop the predator. Macrokupara is not remarkable in
deadly speed, like a jaguarete, but compensates for slowness with significant
physical strength. In stock at the jakarawa, there is one effective defensive
technique that these animals use during a fight with a predator of this kind.
The jakarawa male reared up to look larger, and made several springy jumps on
his hind legs towards the macrokupara, trying to hit the unexpected opponent
with a hoof in the muzzle. The macrokupara roared and reared up on its hind
legs, flailing its clawed forepaws. The jakarawa male avoided several times
the blows of the macrokupara’s claws with deft jumps, and then with one precise
jump reached the target, struck a blow with his hard hoof-like claw of the front
leg in the predator’s nose and jumped aside. Macrokupara roared in pain, and
its nose bled. While it was rubbing its nose to relieve the pain, the jakarawas
escaped safely, and the myriyutherians who witnessed the incident began to rear
up one by one on their hind legs, preparing to defend themselves. But these
precautions were unnecessary: the macrocoupara no longer continues the attack,
but simply went to pick the berries from the bush, scratching its bleeding nose
with its paw from time to time.
When the macrokupara walked away from the thickets, it became obvious that it
was not up to it to compete in speed with the jakarawas. It limps, and scars
are visible on its hind leg, overgrown with bare, hairless skin. This beast
suffered many years ago during a meeting with Tisquesusa’s mother. He also fed
on berries, but, feeling the smell of jakarawa cubs, it wanted to get fresh
meat. The attack attempt was pure improvisation – because of the lameness, this
beast has long been unable to hunt to the utmost, and is content with only random
prey and carrion. A highly specialized predator with such wounds might not survive,
but the macrokupara is omnivorous, so it compensates for the inability to hunt
with a varied diet.
On this day, the macrokupara did not have a chance to eat young meat, but he
did not remain hungry. Plant foods and small prey like reptiles and rodents
help the beast keep a good shape. Despite the lameness, the macrocoupara wanders
through the forest for a long time. It walks around its territory along a long
route, and keeps in its mind a map of the area containing information about
the sources and types of food. It is omnivorous, and therefore its thinking
is different from the thinking of pure predators and herbivores. Its brain is
geared towards solving a variety of tasks and the development of various sources
of food and ways to get it.
Walking around the edge of its territory, the lame macrokupara stumbled upon
the fresh remains of a jakarawa. He sniffed at the corpse, on which the soft
tissues of the legs and belly were eaten, but there were still a lot of edible
parts left. These are the remains of the prey of Ajuricaba – a specialized meat-eater.
The big cat ate a lot, but not everything that can be eaten and digested. The
sharp cutting teeth of a cat are suitable for cutting soft tissue, so Ajuricaba
paid attention to those parts of the carcass where there was a greater amount
of soft tissue. He could not gnaw the spine and chest of the prey – in this
case, it is possible to break teeth accidentally. But for the macrokupara, there
is a lot of edible matter left on this carcass. The crushing tuberculate teeth
of this animal easily deal with the soft heads of bones, crush joints and grind
cartilage. The lame macrokupara gnaws with appetite at the bones of the remains
of Ajuricaba’s prey. In the end, with one seizing of its jaws, it cracked open
the skull of the jakarawa and licked the brain out of it. The strength of the
jaguarete’s teeth is not enough to repeat this trick, and for the omnivorous
macrokupara, it is not a novelty to finish eating the hardly edible remains
of someone else’s prey. Let him not know how to kill as cleverly as cats, and
it is a cripple at all, but it is able to find food where others fail to do
it.
Having finished eating, the macrokupara sniffed the ground. It smelled the faint
scent of Ajuricaba’s footprints – expressed enough to stick to it. Without hesitation,
the lame macrokupara followed this trail. After its feast, only a gnawed spine,
several large bones with chewed heads, and scraps of skin remained from the
remnants of the jaguarete’s prey. Every more or less edible matter was eaten
by the beast.
The lame macrokupara does not pursue Ajuricaba all the time. It follows approximately
the same route as the jaguarete male, but constantly deviates in various directions
to search for plant foods. It is afraid of the jaguarete – this predator is
able to maim it, and even kill it. Therefore, the macrokupara constantly keeps
a respectful distance so as not to cause aggression of the cat, but to be the
first to find the remnants of Ajuricaba’s prey. In addition, it is omnivorous,
and it is important for it to diversify its diet with vegetable and other foods
– it does not depend strictly on the hunting success of Ajuricaba, but willingly
diversifies its diet with fresh meat from the cat’s table.
Thickets of polomiki lantana can be found in various places of the selva, including
the new territory of Ajuricaba. Whenever a site appears in the selva occupied
by a plant community relatively poor in species composition, a standard set
of symbiotic species – other plants, as well as fungi and animals – is formed
around it. Therefore, in the thickets of polomiki lantana, it is always possible
to find deformed stunted shoots on which colonies of pokopoko treehoppers feed.
And the well-being of these insects is impossible without the round-the-clock
care of at least two species of insects – tapiyukan wasps during the day and
tarukuwa ants at night.
On a tree not far from the thickets of polomiki lantana, a nest of tapiyukan
wasps was built. This huge structure resembles a bunch of grapes or an inverted
spruce and is attached under a large branch of a tree; the nest consists of
several tiers of combs made of paper pulp, which the wasps produced themselves
by chewing the plant mass and gluing it with saliva. In conditions of regular
rains, this choice of the material for the nest seems strange, but wasps build
such nests for millions of years, and they successfully serve the needs of the
colony. During the construction of the nest, wasps add substances to the paper
pulp that give the material the desired properties. The umbrella-shaped roof
of the nest, although made of paper, perfectly protects it from water even in
the rainy season. To protect against getting wet, it is generously impregnated
with plant wax, which the wasps scrape off the leaves and fruits of the plants
around. As long as there is no rain, worker wasps diligently apply wax to the
top of the roof, layer by layer, while repairing and building up the edges of
the roof. In the rain, water drops roll down the waxed surface without wetting
it. The outer walls of the nest are also impregnated with wax, protecting the
colony from rain and wind. Several successively decreasing tiers of combs hang
under the roof. They are all built around the strong, fiber-reinforced central
stem of the nest. This is the axis that determines the symmetry of the nest
and carries the main load. Under the very roof, in the upper tier of combs,
one of the queens lives – the founder of the nest and the oldest individual
of the colony, which is zealously protected by working individuals. Other queens
occupy sequentially the lower tiers of the colony. Each of the queens lays eggs
only on its own layer of combs, although worker wasps can transfer the egg of
any queen to the combs of another layer if development conditions seem unfavorable
to them. The middle stalk of the nest is the main support for all tiers, but
as the nest expands, the wasps attach several auxiliary stalks reinforced with
plant fibers along the edges of the combs.
Every day, worker wasps scurry between the lantana thickets and the nest, bringing
the nectar of the plant and the sweet honeydew of the warded pokopokos to the
nest. Some wasps are busy with a more responsible occupation – they are hunters
who get food for larvae – small insects with soft body covers. A lot of wasps
are on duty on the roof of the nest – these are old individuals who already
have little strength for long flights to lantana thickets, but the sting is
still pointed enough to discourage predators to profit from nutritious larvae.
Ants are especially often engaged in robbery, and there should be enough guards
on the roof of the wasp nest, ready to rush into battle and sacrifice themselves
in the name of the prosperity of the colony. However, it often happens that
the dedication of all the members of the colony cannot save it from death.
Wandering around the territory of Ajuricaba, the lame macrokupara noticed the
wasp nest in a tree. The beast has already destroyed many insect nests, and
it knows that the wasp nest is a whole warehouse of treats, guarded by many
insects that have pointed stings. Wool and thick skin protect it from the attacks
of adult wasps, and in the cells of paper combs a delicacy awaits it – lots
of fat larvae. To get the wasp nest, speed is not needed: the main thing here
is dexterity. Despite the injury, the macrokupara did not lose the tenacity
and strength of its paws. Like a bear of the human era, the macrokupara clumsily
climbed the tree. The trunk is thick and cannot be grasped with paws, but the
thick lignified stems of the vines easily endure the weight of an adult macrokupara,
and it is much more convenient to climb up them. A wasp nest hangs ten meters
above the ground, but this does not frighten the macrokupara. Having reached
the nest of wasps, the beast knocked it down with a blow of its paw. Plant fibers
woven into the thickness of the nest couldn’t withstand the impact, and a significant
part of the nest broke off and fell down. Under the branch, only a piece of
the uppermost tier of combs remained, and the rest of the tiers crashed down.
The calmness of the wasp colony was broken by this powerful blow. Some of the
wasps and larvae were crushed by flattened combs, but some of the worker wasps
could still fly. And there were enough of them to repulse the enemy.
Having hurried down from the tree, the macrokupara rushed to its trophy and
tore apart the remains of the wasp building with its claws. Feeling the smell
of their native nest, the worker wasps attacked the beast, forcing it to brush
them off. Macrokupara feels pain from the wasp stings, but does not stop feeding
– it sucks with pleasure the larvae and pupae of wasps from cells. This is a
very nutritious and tasty food, for which it is worth enduring some pain from
wasp stings. Macrokupara breaks open the nest, separating tier by tier, and
eats everything that is possible. After about half an hour, its feast ended,
and it continued its wandering, scratching its stung muzzle from time to time.
Wasps circulate over the remains of the ravaged nest. They can no longer do
anything to save the colony – the instinctive program does not give them advice
on how to save the larvae from the fallen nest. Moreover, this occupation is
meaningless in itself: there is simply nowhere to take them away to.
While the wasps crawled helplessly over the remains of the nest, several tarukuwa
ants were busily examining the crushed and torn combs. Macrokupara could not
extract from the cells of the combs all the edible matter that was there, and
the crushed wasp larvae seemed to be a very good find to the ants. These ants
have set up a colony in the soft core of another tree in the vicinity of polomiki
lantana thickets. Their main food is tree gum, but there are always a large
number of larvae in their nest, which require protein food for normal growth
and development. Therefore, the smell of the remnants of the tapiyucan wasp
nest attracted several ant scouts, who quickly returned to the nest, carrying
with them pieces of wasp larvae. Then the first small squads of foragers appeared
on the remains of the wasp nest, which began to scout around the area in search
of edible remains: wasp brood not eaten by macrokupara, honeydew and nectar,
as well as dead and wounded wasps. After about half an hour, a whole column
of tarukuwa ants moves in both directions between the place of the macrokupara
meal and the ant colony. Some survived worker wasps try to resist the ants –
they fly over the column, attacking single ants, biting and stinging them. These
are desperate and obviously fruitless attempts – the ants outnumber them, and
the wasp that attacked the ant immediately becomes the object of attack by other
ants. They pounce on each wasp, several individuals at once, grab it by the
wings and bite it in its abdomen. With bites and poison, the ants finish off
the remaining worker wasps one by one and butcher them right on the battlefield,
eating out soft tissues from the chitinous shells. Pokopoko’s honeydew from
the guts of wasps is also used – worker ants suck it out and feed it to foragers
busy plundering the remains of the wasp nest. In nature, nothing goes to waste:
thanks to the efforts of foragers of tarukuwa and other species of ants, the
remains of a wasp nest appear completely cleared of everything edible in a few
hours, and literally in just a few days they will become soggy with rainwater
and spread out into a paper pulp, which is utilized by bacteria and fungi.
All parts of the nest that fell to the ground died. However, this does not mean
the death of the entire colony. After the attack of the macrokupara, only the
upper tier of the nest remained on the branch, protected by a broken waxed roof.
Worker wasps that survived after the death of the nest gather on its remains.
Only the roof of the building persisted, under which the very first layer of
combs was built – the very one in which the very first worker wasps had been
raised. As the nest grew, it expanded, and the differences in the size of the
cells show how it was expanded as the size of the nest increased. On this disastrous
day for the colony, almost all the offspring of the colony, and a significant
part of the working individuals, died. But the oldest queen, from which this
colony began, remained alive – she survived, hiding under the roof of the nest.
She gives meaning to the existence of worker wasps – sterile females ready to
work selflessly for the benefit of the entire colony. The surviving workers
gradually gather at the smell of the queen – they try to squeeze deep into the
crowd around the queen, closer to her, in order to make sure of her well-being
and receive chemical orders from her. There are enough workers to provide care
and protection for the remnants of the colony, so the colony will survive, despite
the significant destruction caused by the macrokupara. The war is over, giving
way to creative labor, so the worker wasps turn from warriors into builders.
Under the influence of the chemical orders of the queen, they scatter around
the neighborhood, land on the trunks of trees and begin to scrape the bark and
wood with their mandibles. By chewing these materials and mixing them with saliva,
wasps get the wood pulp, of which the nest shell and new tiers of combs will
be built.
Some of the wasps descend to the polomiki lantana thickets in search of new
colonies of pokopoko treehoppers – working individuals work at the limit of
their capabilities, therefore they need additional food. Every worker wasp that
arrived with a drop of pulp in its mandibles is met by nurse wasps. While the
nest-building wasps take away her burden and attach it to the nest, the nurse
regurgitates a drop of nectar or pokopoko honeydew into the worker’s mouth,
and this individual can fly for a new portion of wood pulp.
Workers quickly repair the destroyed part of the upper tier of the nest. Some
of them complete the damaged roof, others gather and apply wax to its surface,
and the third ones re-equip the comb cells under it – they wreck the old cells,
clean the surface, chew the material of the cells and mold new clean cells from
it. Gradually, new cells appear along the edge of the comb, ready to receive
a new generation of wasp offspring. In the middle of the roof, workers have
already begun to form a stalk from wood pulp, embedding hairs and plant fibers
into the unset building material. The chemical instructions from the queen make
them build more and more intensively – the colony needs to be replenished.
The queen, accompanied by working individuals, inspects the “newbuilds”. She
often asks workers for food, opening her mandibles, and no one dares to refuse
her. Her body begins to work in the “egg factory” mode again, and soon one egg
appears in each new cell – this is the future of the colony. One or two larvae
from the new brood will be raised in a special way – they should turn into new
fertile queens that ensure the reproduction of the colony.
… Another year has passed.
Near the thickets of polomiki lantana, a large young myriyutherium male feeds.
It is difficult to recognize in him that little porcupine cub that lost its
mother a few years ago. This is Tisquesusa. Judging by his size, the survival
lessons he learned in childhood were successfully adopted, and he managed not
only to survive, but also to grow into a huge strong beast, able to fend for
himself. He leads a full-scale life of an adult lone animal, does not depend
on anyone and independently overcomes the difficulties that nature delivers
him. The year before last, he managed to survive during a very large flood,
sitting for a long time on a branch of a large tree. At this time, he managed
to eat all the available greenery on the branch and even gnawed off the thickets
of epiphytes.
Tisquesusa not only proved his resilience, but also managed to pass on his genes
to a new generation; he has long been successful with females, regularly wins
courtship tournaments and for the second year in a row becomes the father of
several small cubs, which he does not take care of, to tell the truth. Like
all males of its species, he is only interested in females when they are ready
to mate, and is aggressive towards other adult males, perceiving them only as
competitors.
In the thickets of polomiki lantana, Tisquesusa eats not only berries, but also
shoots. Thanks to his strong incisors, he is able to bite even thick branches,
but he prefers young lantana greens. The bitter taste of the plant no longer
seems unpleasant to him, as it had taken place in his childhood, and he readily
devours the greenery of the plant in large amounts. If a predator wants to attack
him, Tisquesusa is ready to fight back with claws and huge incisors, and strong
quills protect him from sudden attacks from the side and from behind.
Tisquesusa feasts not only on the shoots, but also on the fruiting bodies of
the lantana false fruit fungus. They differ somewhat in taste from the “true”
polomiki lantana fruits, but are also edible and tasty. He was so carried away
by the search for these fungi that he looked back only when he heard a deep
throat rumbling behind him. Raising his quills, Tisquesusa turned sideways and
made several sharp movements with his tail – a fully formed bone “mace” with
strong horn spikes had already grown on it. Tisquesusa’s eyesight is not very
good, and he could hardly see the beast standing behind him. And the sense of
smell gave the exact answer immediately – there is a macrokupara in front of
him. Sometime in childhood, Tisquesusa had already experienced fear when this
beast attacked him, being a very small cub. That time, the mother protected
him and tore the paw of the predator with her claws. The memory of this incident
was preserved by Tisquesusa as separate “flashes” of sensations, so it is unlikely
that Tisquesusa will be able to recognize this beast as the same predator that
attacked him in childhood. But there is no doubt – this is exactly the same
beast: it limps on one leg, and scars are visible among the wool. It is quite
possible that he also does not recognize Tisquesusa either: the young myriyutherium
has changed too much over the years.
For several seconds, both beasts looked at each other intently, ready for any
development of events. This time, Tisquesusa was not afraid of the beast, but
only growled in displeasure and continued to eat fungi. He does not forget about
the presence of a predator: his quills stick out on end, and his tail twitches
slightly from side to side, as if preparing to strike. If the macrokupara nevertheless
decides to attack him for some reason, Tisquesusa has something to meet him
and put him to flight. The macrokupara also assessed his strength, glanced at
the bristling up Tisquesusa, and then simply stepped aside, walked along the
edge of the polomiki lantana thickets and began to eat berries. Something like
an armed truce has developed between myriyutherium and macrokupara – neither
of the animals will yield in the event of a conflict, and both animals can receive
serious wounds from each other in the such fight, so they are afraid to get
involved in a fight. Macrokupara does not want to mess with such a dangerous
opponent for another reason: it began to age, and gray hairs are visible on
its face. It was already an adult when it met the little Tisquesusa, and now
its life is already coming to an end. However, thanks to the knowledge accumulated
throughout his life about how to get food, he does not remain hungry, even when
his powers are no longer what they used to be. And the meat of an adult myriyuterium
is completely inedible for a macrokupara.
... Another rainy season has come. Rain falls from the sky like a continuous
veil, and rivers in the plain overflow their banks. The selva turns into a patchwork
carpet of rivers, lakes and swamps that connect with each other, and the forest
remains between them as separate unflooded islets. But even if a continuous
forest canopy is visible from a bird’s eye view, the ground under the trees
may well be flooded with river waters to a considerable depth, making life difficult
for land animals. At this time, terrestrial inhabitants have to move to islets
of a forest that are not flooded with water, or even climb trees. The tree inhabitants
at this time feel not much better: they may not be afraid of flooding, but long
rains force them to seek shelter and significantly reduce the time for searching
for food.
Huge Saguanmachika doesn't like rain. At this time, it is more difficult for
him to hunt, because all the prey is hidden, and unpleasant rain soaks the plumage,
so it is more difficult for him to fly. He spends a significant part of the
day in the nest, along with the female. They formed a couple over a year ago,
and since then they have not parted. Both birds perfectly understand each other,
and they have developed quite harmonious family relationships - as far as the
predatory disposition of large birds of prey, armed with a sharp beak and claws,
allows.
A new stage in strengthening the relationship between Saguanmachika and his
female was the building of the nest. The birds chose a place in the crown of
a huge tree towering above the forest canopy, and dragged a whole bunch of boughs
into the fork of the branches – the foundation of their nest alone weighs about
two hundred kilograms. On top of it, birds carefully laid a flooring of thin
rods and branches, forming the nest itself with a diameter of more than two
meters. Birds do not nest during the rainy season, but the role of the nest
in their family is more than just a place to breed in. The nest is also a kind
of center of the vast territory of their couple, a meeting place for breeding
partners and a place for their communication.
Unlike the sociable kurekure parrots, the illapas are very “short-spoken”. Their
voices are rarely heard over the forest, and at home the birds prefer to communicate
with the help of not numerous postures and actions. To escape the rain, Saguanmachika
and his female stand on the nest under a branch that provides at least some
protection from the rain. But a gust of wind shakes the water from the branch
onto the birds, and the water seeps under their plumage. This is an unpleasant
sensation and both birds shake their plumage. After that, the female simply
climbed under the wing of Saguanmachike and froze, closing her eyes slightly.
Polomiki lantana grows only on hills where the waters of rivers do not reach
during the flood, or where flooding is short-term, no more than a few days.
If the bushes appear flooded, many pests of this plant die. During the rain,
the flowers of the plant get wet and stick together, so it is more difficult
for insects to gather nectar from them in those few hours when the rain stops
and the sun peeks between the clouds. Pokopoko treehoppers escape the water
by rising to the top of the plant’s crown. Despite such relocations, insects
are not left without care. Tapiyucan wasps continue to visit their colonies,
finding pokopokos by their scent. But during the rains, the honeydew secreted
by pokopokos does not accumulate on the branches, but is washed off with water,
so wasps get only the honeydew which the insects under their wardship secrete
in their immediate presence.
At night, no one takes care of the pokopoko treehoppers: the rising water cuts
off the tarukuwa ant colony from them. But this circumstance had little effect
on the life of the tarukuwa ants: they are surviving a flood on the tree where
their colony is arranged, and the water has seeped into the lower tiers of their
dwelling. Pokopoko colonies are inaccessible, but the ants do not suffer from
hunger: they simply make forays into the crown of the tree and into the thickets
of vines and epiphytes. During the flood, the crown of the tree became a refuge
for many small creatures – insects, spiders and mites.
Adult tarukuwa ants have a peculiar diet: they feed on the gum of trees, preferring
trees infected by fungi. During the day, the tarukuwa ants stay in tunnels bored
in the wood and are relatively inactive. They are busy mainly with the care
of the queen and the numerous offspring she produces. In their tunnels, the
tarukuwa ants catch insects that happen to be there and feed them to their larvae.
In the cool of the night, tarukuwa workers become more active. At this time,
it is safer to feed, and from the tunnels gnawed in the wood, tarukuwa workers
rush into the crown of the tree. It isn’t by accident that the tarukuwa ants
choose trees with soft wood for life. It is easier to bore tunnels in their
trunks, but this is not the main advantage of such trees. They usually grow
very quickly, but their wood is nondurable. Ants have a symbiotic relationship
with more than just pokopoko treehoppers. The services of tarukuwa ants are
also used by various species of wood-attacking fungi that infect trees resided
by tarukwa ants. The mycelium of these mushrooms grows in the tunnels bored
by ants, and spreads via them throughout the entire tree trunk. On trees inhabited
by ants of this species, fruiting bodies of mushrooms develop in large numbers:
they sprout from under the bark, which bursts under their pressure. In such
places, the gum begins to exude abundantly from the tree trunk, and it is quickly
licked off by the working individuals of tarukuwa ants. The gum is sticky, and
fungal spores stick to it in large numbers. Ants bring them into the nest along
with food, and during the sharing of food between members of the ant colony
fungal spores appear in the intestines of all adults who have ever eaten gum.
The fungal spores survive passing through the guts of the insects and are not
harmed by the ants’ symbiotic bacteria that ferment the gum and aid their digestion.
Unlike adults, ant larvae successfully develop only with an abundance of high-quality
protein food. And the only stable source of such food is insects that live in
the crown of a tree. During search for gum, tarukuwa ants exterminate many small
insects – often a worker ant, having filled its crop with gum, drags a piece
of insect into the colony. Under good conditions, the ant larvae grow very quickly,
and new workers and soldiers reinforce the colony. And when the food flow becomes
more abundant thanks to the efforts of working ants, the larvae have the opportunity
to become something more than just sterile workers or soldiers. Part of the
larvae that receive enhanced nutrition will live a different life: they are
destined to conquer new habitats and become the founders of new colonies. But
for now, ant larvae stir in nest chambers, and tarukuwa workers scurry in tree
crown wet from the rain and gather tree gum.
Flood is a serious test even for those creatures that love moisture. During
a flood, many rainforest ground frogs are faced with a choice: to swim in the
water or to climb trees. Small amphibians of light build very easily switch
to a new way of life, but heavy-built short-legged burrowing forms have to move
into the water or follow the rise in the water level, getting out to the hills.
A long body of blue-violet color with lighter transverse rings wriggles in the
water – it is a giant mboi-tata caecilian. Usually these animals lead a secretive
lifestyle and react only to the presence of prey within reach. But during the
flood, water filled the hole of the mboi-tata, and the amphibian had to move
to the element of its very distant ancestors. It is difficult for this blind
creature to be guided in the water – this world of space is significantly different
from the tight hole that the giant caecilian felt literally with every centimeter
of its body. And if on land the mboi-tata behaves like a “living trap”, then
in the water it must search for prey actively. Living in the river, mboi-tata
feeds on frogs and slow-moving fish like catfishes, and also eats freshwater
crabs. Slow metabolism and the ability to skin respiration allow this animal
to emerge for air not too often. Having taken one breath, the amphibian may
not emerge for almost an hour. Having dived, it swims along the bottom, not
appearing too much to the eyes of possible predators. It may be blind, but its
chemical sense organs and separate sensitive cells scattered in its skin allow
the amphibian to be guided in the water. Mboi-tata feels both the movement of
the water flow around it and the perturbations that schools of nimble small
fish bring into it. This kind of prey is too small for it, so the amphibian
does not pay attention to it. By indirect cues, mboyi-tata can determine the
size of creatures that are nearby. If this creature is small, it can be attacked,
but it is better to stay away from large ones.
Waves felt by the giant amphibian indicate the movement of a large creature.
Judging by the direction and pattern of these waves, it keeps near the surface
of the water and rows rhythmically with its paws, moving towards the shore.
The primitive brain of the mboi-tata suggests that this creature is too large
to become its prey. A meeting with it is undesirable, so the mboi-tata simply
dives deeper and digs into the ground, raising a cloud of turbidity mixed with
rotten leaves of the forest floor with its movements. When they will settle,
the body of the mboi-tata will not be noticeable.
Ajuricaba got out of the river and shook himself. He’s soaked through and not
very fond of water, although he isn’t afraid to hunt in the rain, swims across
small rivers without hesitation, and even knows how to dive. He is hungry: in
the last couple of days, he was content with only occasional small prey. Perhaps
even the watery meat of the mboi-tata would now be a suitable snack, but this
animal escaped from him in time thanks to caution, and it’s very difficult to
hunt this amphibian in the water: under water, the mboi-tata swims quickly,
and dives deep and for a long time. In addition, there are many other creatures
in the river that are more suitable for the role of dinner for the large cat
– fish, for example. During floods, fishes have the opportunity to swim through
the forest and feed on fruits and small animals that fall from tree branches
into the water. In human epoch, rodents were the favorite food of small cats.
And in the Neocene in the basin of the great rivers of South America there are
rodents that can satisfy even the appetite of a lion-sized cat.
During the flood, many small living creatures crowd on the hills, which turn
into islands. Some of the forest dwellers escape the water on the trees, while
others have to survive the flood on the ground. During such natural disasters,
a wide variety of animals, including predators and their prey, gather on patches
of land surrounded by river waters. Therefore, those who escaped the element
on such an island face a danger of a different kind.
Tisquesusa survives another flood on the island. He has studied his possessions
well, and knows where to go in order to escape the flood, so he perceives periodic
floods as a completely natural phenomenon that simply introduces some difficulties
into his habitual life. On the island in the river waters, he has everything
he needs for life: shelter and a sufficient amount of food, including thickets
of polomiki lantana. This shrub is the main type of food for myriyutherians,
but not the only one – these porcupines eat dozens of species of herbaceous
plants and love to chew the leaves of young trees in the undergrowth. Wandering
around his island, Tisquesusa found a delicacy – calathea grass. Its spotted
leaves are very recognizable, and for the Tisquesusa, it is one of the favorite
fodder plants – they are nutritious and have a noticeable sweetish taste. He
began to dig around the plant with his claws. After some movements of his paws,
thick spindle-shaped tubers of the plant appeared on the ground surface, and
Tisquesusa began to eat them greedily, sniffing with pleasure. Distracted by
eating delicacies, Tisquesusa did not notice how an ominous silence engulfed
the forest, and then somewhere in the tree crown, a kurekure parrot screamed
in alarm. This loud rasping voice is known to all the inhabitants of the forest,
and its meaning is unambiguously understood by them. Tisquesusa looked back
in time – and looked directly into the eyes of the monster. A huge jaguarete
male – Ajuricaba – sneaks up on him. If Tisquesusa had delayed, he would have
been killed. But he reacted instantly: he turned on his hind legs and stood
in a fighting stance, growling loudly and threatening the jaguarete with his
powerful claws, and waving a mace on his tail. Ajuricaba also growled loudly,
but he no longer dared to attack the myriyutherium. The moment of surprise is
lost, and every second of delay reduces the predator’s chances of a successful
hunt. Ajuricaba growls, bares his teeth and lashes his sides with his tail.
Tisquesusa does not back down; its quills stand on end, his incisors are bared,
and his claws are ready to strike. If an attack does happen, Tisquesusa will
be able to repel it with a blow of a heavy tail, driving strong corneous quills
into the body of the enemy. Both mammals are armed and worthy adversaries for
each other; for about five minutes they both stood in a fighting stance, growling
and purring at each other, displaying their readiness to fight. Then Ajuricaba
turned around and retreated, realizing that even if he won, he would receive
serious injuries that would put his survival in doubt. He wandered to the edge
of the island, to try to catch a big fish or someone else. The porcupine followed
the cat with his eyes, baring his incisors, and then continued to dig and devour
the tubers of the plant. As long as the myriyutherium and the jaguarete were
assessing each other’s strengths, the kurekure parrots watched them from the
forest canopy and screamed in alarm, like fans during a match. When Ajuricaba
disappeared into the bushes, some of the parrots continued to mob it, while
other birds gradually calmed down and continued to feed in the forest canopy.
The confrontation between Ajuricaba and Tisquesusa was observed from a tree
by one silent witness – the large illapa male Saguanmachika. He is almost not
concerned with the problems of the inhabitants of the ground and water: his
possessions are in the sky. This year, for the first time, he became the father
of three voracious chicks at once, which constantly need to be fed. Therefore,
he has to hunt almost all day, in any weather. The conflict of large animals
interests him only indirectly – their movements frighten those creatures that
can become the prey of the illapa. Flooding also helps to prey on land dwellers
– Saguanmachika often catches drowning animals carried by the river, or hunts
on small islets where he cannot be escaped from. Now he did not see suitable
prey, so he indifferently watched Tisquesusa, digging in the ground, and followed
Ajuricaba.
Ajuricaba grew up to be a huge and strong beast, completely different from the
helpless, blind kitten completely dependent on the mother, which he came into
this world. Like Tisquesusa, he is young, strong and very popular with females.
He has already become the father of many kittens, which he does not raise, like
Tisquesusa. It should be noted that Ajuricaba is a very successful hunter, so
an unsuccessful attack on Tisquesusa does not discourage him. Staying hungry
for a while and retaining the ability to hunt in the future is better than getting
hurt, left crippled and living the rest of your life starving, picking up carrion
and other hunters’ scraps. However, for other inhabitants of the forest, it
is precisely such a life strategy that turns out to be optimal.
Ajuricaba left and Tisquesusa continued digging for delicious calathea roots.
If the predator did not continue the attack, most likely, in the near future
it will no longer return, and for some time it will not be possible to be afraid
of it. Tisquesusa chewed on another root as twigs snapped somewhere off to the
side. Still chewing, Tisquesusa returned to his fighting stance, his claws out
in front of him. This is hardly an enemy: the predator will not reveal its location
so clearly, and this alien wanders through the bush, branches cracking under
its paws. It is possible, however, that it is a competitor, so Tisquesusa prepared
to drive him away.
A lame macrokupara emerged from the thicket. During a fight with Tisquesusa’s
mother many years ago, it was injured and maimed for life. However, it does
not prevent the beast from living: it continues to limp, but it has found an
easy way to survive and eat well. It doesn’t need Tisquesusa or what he eats:
the macrokupara just follows Ajuricaba, picking up leftovers from his dinner
table. Due to its large size and strength, it easily drives away competitors,
but does not risk attacking its benefactor. Every time after a successful jaguarete’s
hunt, it just waits patiently until Ajuricaba finishes eating, and eats the
rest of his prey. This trick allowed it to maintain nutritional state and health,
despite its considerable age and pale gray hairs on its face. It became the
father of many cubs, and even now some females in the forest are pregnant with
its cubs.
The limping macrokupara walked right next to Tisquesusa, forcing him to keep
his fighting stance. The porcupine bares his incisors and holds his front paws
at the ready, but the macrokupara simply gave him an absent-minded look, as
if he were just a tree trunk or a bush. This beast has a different interest
– not to lose track of its unwitting benefactor. When the macrokupara left,
Tisquesusa continued to feed.
Ajuricaba wanders along the water’s edge. Before the flood of the river, this
place was just a forest, but now Ajurikaba splashes on the water over and over
again. The trees stand in the water, and in the shade of the crowns, fishes
swimming above their roots are visible. The flooded forest has one advantage
for hunting – it is easier to hide and ambush here. Ajuricaba sniffed the ground
and animal droppings under the trees – here it is a favorite feeding spot for
the jakarawas. He likes their meat, and he is pretty good at hunting these animals.
They are swift and wary, and are best hunted from ambush, best by cutting off
their retreat into the water.
Ajuricaba hid among the roots of a tree, where parted feathery fern fronds rose
from the ground. Their shadow blends with the mottled pattern on Ajuricaba’s
hide, obscuring the outline of his body and allowing him to observe his surroundings.
For the hunt to be successful, it is important just to wait patiently, and the
predator lay in ambush.
Jakarawas appeared quite soon – they belong to the most common near-aquatic
rodents in the selva. A small herd of these animals wanders along the edge of
the water, browsing the grass. It numbers several adult females with striped
cubs, led by a dark red male. Ajuricaba has already forgotten the times when
he had to catch small and stupid jakarawa cubs. Now he has grown a lot, so he
prefers to get adult animals. Watching them, he noticed that one of the females
stepped on one leg not very confidently – the animal was limping slightly, because
a fly larva had penetrated under the skin at the base of the hoof-like claw,
and it was painful for the animal to step on this leg. The consciousness of
Ajuricaba works in such a way that the rest of the animals seem to have ceased
to exist for him: they have become only a background, on which the limping individual
is clearly distinguished. Ajuricaba lies in wait, keeping his eyes on this jakarawa.
He waits for this particular animal to separate from the rest or come close
enough to make one precise jump from the ambush.
The silly jakarawas do not notice the hidden predator: they come closer and
closer to the fern thickets where Ajuricaba is hiding. He is preparing to attack,
and his muscles are tense – he must put all his strength into one exact rush.
And when the limping jakarawa moved away from its relatives to pick up the fruit
fallen from the tree, Ajuricaba rushed forward. His appearance dangerously close
to jakarawas was so unexpected that he managed to overtake and bite the intended
prey by the throat before the jakarawa male sounded the alarm and the herd rushed
away. While Ajuricaba strangled his prey with clenched jaws, the rest of the
jakarawas rushed to the saving water. They dived with a splash and swam under
the water into the depths, scaring away the fish. Having adapted to a semi-aquatic
lifestyle, jacaravas are able to hold their breath for a long time. On land,
Ajuricaba tries to cope with his prey, but it starts to break out of his jaws
every time, as soon as he loosens his bite. Finally, Ajuricaba simply shook
the captured jakarawa so hard that it broke its neck. And more successful jakarawas
continue to hide from him under water. Feeling the need to inhale fresh air,
the jakarawas began to stand on the bottom on their hind legs one by one, spreading
their toes and stretching torso almost vertically. Animals raise their muzzles,
exposing their proboscises to the water surface, and breathe carefully. Paddling
with their feet, the beasts emerge closer to the shore, but there they feel
immediately a terrible smell of blood: next to the water, Ajuricaba tears its
prey and greedily swallows warm meat. Being close to a predator, even having
got its prey, is too dangerous, so jakarawas swim farther away from the place
of Ajuricaba’s feast.
Jakarawas dive mainly in case of danger, but still prefer to swim near the surface
of the water, putting their heads up and breathing freely. Animals move in the
water with expanded pads of their feet in a “step” or “galloping” mode, moving
their legs in the same order as during walking. The cubs swim, keeping close
to their mothers – in this way, they save some of their energy. Jakarawas are
excellent swimmers, able to swim up to several kilometers; they easily swim
across most of the rivers in the Amazon and Hippolyte river systems.
It wasn’t for nothing that Saguanmachika followed Ajuricaba. When the presence
of the jaguarete frightened the jakarawas and they swam away, the bird of prey
had only to choose his prey. The herd of swimming jakarawas is perfectly visible
on the surface of the river, and they will not be able to swim away quickly
from a feathered predator. And if they dive, they can be attacked again – they
cannot swim far underwater. Saguanmachika flew off the tree and flew low over
the water, flying around the trees sticking out of the water. In a matter of
seconds, he caught up with the herd, put out his claws and snatched the jakarawa
cub out of the water, almost without slowing down. The adults were frightened
by the broad-winged silhouette of the illapa, which blocked the light for a
moment, and they did the only thing they could – they dived. But this precaution
came too late: one member of their herd is no longer with them.
Flapping his wings, Saguanmachika took off, holding prey in his claws. This
jakarawa cub is very well-fed and heavy: the illapa barely managed to gain altitude
and reach the forest canopy. And even more so, he will not be able to drag prey
to the nest. Therefore, having put the prey into the fork of the branches, Saguanmachika
simply began to tear the meat and swallow it in huge pieces in order to be able
to fly to the nest and regurgitate more meat for the chicks. In part, he succeeded
to do it: he cruised twice between a tree with prey and a nest, and the contents
of his stomach moved to the stomachs of the chicks. When he returned for the
third time, it turned out that someone had already stolen his lawful prey. There
are too many eaters in the forest canopy and the competition for prey is very
steep. There was little meat left on the half-eaten carcass – the best pieces
had already been fed to the chicks. Nevertheless, so many edible parts remained
on it that it seduced the unknown, but very clever thief. Illapas do not belong
to the intellectuals of the world of feathered creatures, so Saguanmachika does
not know the feeling of regret or annoyance from the loss: he simply began to
look for new prey.
Sooner or later, the rain season ends, and the water level in the rivers decreases.
The rivers recede, carrying part of the forest debris from the selva with it.
A huge amount of organic matter will be processed by bacteria, invertebrates
and fish, and will become the key to the productivity of reservoirs. When the
water level drops, aquatic inhabitants try to return to the river with water,
but not everyone succeeds to do it. Separate ponds and pits in the forest turn
into traps for fish and other aquatic animals, and for forest dwellers such
reservoirs turn into feeders. Saguanmachika loves to check out these ponds and
puddles – sometimes prey much longer than his claws, which is worth hunting,
appears there. Such puddles can be surrounded by liquid mud, in which a ground-dwelling
fishing enthusiast can easily get bogged down, but light winged birds easily
empty such puddles. The smallest of them peck out snails, shrimps and small
fish, while the larger ones, like herons, catch more substantial prey. The largest
fishes, weighing several kilograms, are large for herons and storks, but very
well suited to the needs and appetite of Saguanmachika. Sweeping over the surface
of the water, he deftly snatches the largest fish with his claws, while scaring
away the birds that gather around such a puddle. This time, luck was on his
side again: he managed to expiscate a large cichlid, weighing more than two
kilograms, with his claws. The chicks, which there are already two left in the
nest by this time, are not very willing to eat fish. But Saguanmachika himself
greedily eats his catch. Taking off with the preyed fish on a tree, he pressed
it with his claws against the branch and began to tear the meat, swallowing
it in large chunks along with thin bones. Having quickly dealt with the prey,
he dropped down the backbone with head – they can represent an interest, perhaps,
for insects only.
With the end of the rains, a new phase of life begins in the tarukuwa ant colony.
Recession of water re-opened for them the way to the colony of pokopoko treehoppers
in the thickets of polomiki lantana, and the ants restored their feeding routes.
However, this is far from the most important event in the daily life of the
colony. More than a week ago, a special batch of larvae completed their metamorphosis
in the nest of the tarukuva – they were large ones that received a good meat
diet. Guided by the chemical signals of the queen, the workers obediently nursed
these larvae, preparing them for the upcoming mission, bringing this great day
closer.
After an endless succession of rains, a warm and clear day seems to be a real
blessing of nature. And on the sun-warmed bark of a tree inhabited by tarukuwa
ants, at the entrances to their nest, revival reigns. Typically, tarukuwa workers
are active at night – they even have larger eyes than similar-sized ants having
the daily activity. But now it is the working tarukuwa individuals that scurry
on the bark of the tree – with black head, brown thorax and a bright red abdomen.
They fuss, run in groups of several individuals and attack any animals that
are on the bark near their nest. The gecko lizard bitten by them crawled further
up the trunk, the spider, disguised as a pile of bird droppings, stirred and
jumped down, pulling a long safety thread from its abdomen, and a few moths
took off and preferred to look for a quieter place to rest. The number of tarukuwa
workers on the bark gradually increases, and they literally scour the area around
the entrances to the colony. The reason for such behavior becomes obvious soon:
as if at a signal, from various tunnels of the ant nest like a stream winged
individuals, “princes” and “princesses”, began to crawl out simultaneously onto
the bark of a tree. Today is the only day in their lives when they will be able
to take off and settle in order to establish new colonies. More precisely, this
is the mission of young females. The task of males is much simpler: they must
find and fertilize females so that their chosen ones can lay fertilized eggs
for the rest of their lives.
The swarming of tarukuva ants is massive and synchronous in the vast areas of
the selva, therefore, from a bird’s eye view, swarming winged ants are visible
above the trees in various parts of the forest. Males fly from one swarm to
another, spreading the genes of the founders of the colony to other colonies
in the neighborhood. They search for females genetically different from them
by smell and immediately begin mating, without any lengthy courtship rituals.
Their lifespan is already limited, and loosing life for courtship is an unaffordable
luxury.
Females willingly accept the courtship of unrelated males, and the more their
smell differs from the native smell of the colony, the better – such mating
contributes to the growth of the genetic diversity of the future colony. While
the male is busy mating, the female is looking for a tree of a suitable type
– with soft wood, and best of all already old and affected by fungi. The presence
of thickets of polomiki lantana inhabited by colonies of pokopokos in the neighborhood
is desirable, but not necessary – this is just a nice bonus to the diet of ants.
In search of a good place for establishing a colony, the female can fly several
kilometers away from her native colony. While the female is looking for a place
to establish a colony, the male has time to complete mating. As a rule, he has
no opportunity to see the final goal of the female’s flight: he quickly completes
the mating, and the female simply throws him off herself. After the mating,
males are hardly able to keep in air, and they often die, falling into the forest
canopy or on the ground.
During the ant swarming, many forest dwellers literally gorge themselves on
winged ants. But this is the great biological meaning of the mass swarming of
ants – there are too many of them at once for the forest dwellers to be able
to eat them all. Despite the efforts of the ant-devourers, there are always
enough “princes” and “princesses” in the air for them to find each other and
mate.
The community of devourers of ants is numerous. Predatory flies, wasps, and
even itotoptera butterflies take their share in ant swarms. Insectivorous birds
gorge themselves on ants, and nectar-eating lantana mango hummingbirds willingly
catch winged male and female ants to feed their chicks. Winged ants are readily
eaten by tree frogs and lizards, as well as numerous mammals. And among the
mammals there are the largest of the ant-devourers.
Attracted by the swarming of ants, the lame macrokupara approached a tree occupied
by the tarukuwa ant colony. At other times, it also eats insects, but prefers
large ones, like beetles and their grubs. Individually, tarukuwa ants are too
small for it, but during the swarming many thousands of them gather in limited
areas, and they can be eaten in large quantities at once. Macrokupara is resourceful
in finding ways to find food, and it knows how to get a lot of ants at once.
It simply pried a peeled piece of bark with hooked claws and pulled it towards
itself. The bark broke off, having opened the tunnels of insects gnawed under
it, and thousands of ants appeared on the surface of the wood – winged tarukuwa
ants surrounded by wingless worker ones. Dinner is served, and the beast just
has to lick off the crawling ants. At this time, new ants crawl out to the place
of the eaten ones, and the macrokupara can feed for a long time, standing in
one place. Ants try to protect themselves from the huge destroyer of their nest:
they bite the macrokupara on the lips and nose, and inject poison into the wounds.
However, this does not stop the animal: it simply licks them off the muzzle,
continuing to feed.
The swarming of tarukuwa ants benefits not only the insects themselves and the
numerous eaters of ants. Winged males and females did not set off for nuptial
flight immediately after metamorphosis. They spent some time in the nest, gathering
in large groups on the walls of tunnels and galleries gnawed in the wood. Workers
generously fed them with gum, which they regurgitated into their mouths. With
the gum, the “princes” and “princesses” received the necessary symbiotic bacteria,
which the lucky female founders will pass on to their offspring and spread throughout
the colony. In addition, along with tarukuwa ants, symbiotic wood-attacking
fungi spread through the forest. An alliance with ants gives them a significant
advantage: instead of scattering spores at random, the fungus trusts the ants
to disperse them. The fertilized tarukuwa “princesses”, the founders of new
colonies, spread the spores in a targeted manner. These females build their
nests in softwood, just right for the development of the fungus. Even if the
fungus has already infected the tree chosen by the tarukuwa ant female, the
appearance of a genetically unrelated mycelium contributes to the reproduction
of the fungus and the successful development of fruiting bodies. The spores
of the fungus get to a new place with ant droppings or on its covers, glued
with gum, and germinate there. And along with the development of the nest of
tarukuwa ants, the life cycle of the fungus begins.
Insects reproduce quickly and in large numbers, so the death of thousands of
individuals does not matter – it is enough for a few to survive, and they will
ensure the survival of the species. Other animal species have different life
strategies: they produce few offspring and they have a large parental contribution
to the rearing of offspring, but their survival rate is also very high. Such
a strategy is typical for South American rodents – in this features they differ
even from the rodents of the Old World, which grow and breed rapidly.
A young pregnant female has separated from the herd of jakarawas: the time of
delivery is coming, and her cubs should see and imprint her first. Their success
in survival depends on this: the mother feeds and protects them, and they need
to know how she looks. The process of delivery occurs almost imperceptibly from
the outside. The female almost does not worry, and only from time to time freezes
briefly with her hind legs apart when contractions begin. But then the contractions
stop, and she begins to browse the leaves of marsh plants again.
The delivery had taken place very quickly – they were no different from previous
contractions, they just lasted a little longer. Literally in three or four minutes,
the jakarawa female gave birth to two small striped cubs. They were born well-developed
and able to walk just a few minutes after birth – it was this feature that distinguished
the South American caviomorph rodents from their relatives and allowed them
to become analogues of ungulates on this continent, being not tied to shelters
during the breeding season. In the first minutes after the birth of the offspring,
the female ate the afterbirth and began to lick her cubs. In the first minutes
after birth, she became the first moving object they saw, and the first thing
they remembered was the image of their mother, her smell and manner of movement.
This is the most important lesson in life – they must know who will feed and
protect them. Already ten minutes after birth, the cubs began to make attempts
to rise to their legs, and in half an hour they were already running around
their mother. They do not suspect that life is ready to teach them another lesson,
much more terrible one.
A large illapa male – Saguanmachika – is watching the jakarawa cubs from the
tree crown. His survival strategy is similar: two chicks are waiting for him
in the nest, and they have already begun to fledge. In this bird species, the
parental contribution to the offspring is also very large, but it is carried
out mainly after the offspring came into being: the chicks hatch relatively
small and helpless, but then grow very quickly and require a large amount of
food. Therefore, both parents must hunt daily in order to provide food not only
for themselves, but also for their offspring. And even with such care, it is
unlikely that both chicks will survive before leaving the nest. Illapas usually
hunt in the forest canopy, but tempting large prey can make a predator change
its habits.
Saguanmachika took a moment and attacked. He flew off the tree like a lightning,
flew over the very earth and grabbed a newborn jakarawa cub with one paw. But
the predator did not manage to keep it in his paw, and the captured cub fell
out of its claws. It cannot be said that the jakarawa cub was very lucky: the
long claws of the illapa seriously injured it, and the cub is bleeding. It cannot
rise from the ground, but still shows signs of life – twitches its legs and
emits a weak moan. Therefore, the jakarawa female, seeing that it is alive,
is ready to fight for it even with a terrible bird. She stood over the dying
cub and pushed its luckier brother under her body with her muzzle. Saguanmachika
also does not want to miss prey. He landed on the ground, folded his huge wings
and began to walk around the female, trying to take what should be his. A frightened
jakarawa female is forced to hold a circular defense – while a predatory bird
walks around her, she keeps her head towards the enemy, ready to bite with her
incisors. While they can’t crack nuts like at her distant ancestors of the human
era, they are strong enough to tear through the living flesh of an enemy if
necessary.
Saguanmachika tries to scare her. To look bigger and stronger, he spread his
wings, reared up the feathers on his head and back, and began to spring on the
jakarawa. Doing it, he clicks his beak, and his fierce red eyes look at the
jakarawa female. Saguanmachika lunged at the jakarawa, his huge claws thrust
forward, and it instinctively recoiled, pulling the cub along with her. The
cub, wounded by Saguanmachika, had already bled to death by this moment and
died quietly, not having lived even an hour after birth. The jakarawa female
retreated only a step, but this was enough for the predator: the illapa grabbed
the dead cub with its beak and dragged it to itself. When Saguanmachika dragged
the body of the cub, the mother thought that it had moved, and she went on the
attack. Having bared her incisors, the jakarawa female, tired after delivery,
tried to recapture her cub from the illapa. She stomps her feet menacingly,
clicks her incisors and utters sharp sounds reminiscent of squeaky dog barks.
But at the last moment, Saguanmachika put all his strength and finally managed
to grab the cub with his paw. Running up with difficulty, he flapped his wings,
took off from the ground and dragged his prey to the nearest tree. He miraculously
escaped serious injury, escaping with only a broken feather in one of the wings;
it will have little to no effect on his ability to fly. After resting on the
tree, he carried the prey to the nest. Perhaps the chicks will have enough of
this meat for the next couple of hours – or more if one of the chicks got tired
of waiting and dealt with his brother. And Saguanmachika himself will have to
hunt again – not a piece of this prey will fall to him.
A young jakarawa mother hurried with her survived newborn son to the herd: it
would still be safer in the company of relatives. By killing one cub, Saguanmachika
increased the chances of another one to survive, but only slightly: the jakarawa
has many enemies at any age. Their herd lives on the territory of Ajuricaba,
and an adult jaguarete male full of strength regularly hunts these animals.
However, despite the abundance of enemies, this rodent species thrives in the
river system of the Amazon and Hippolyta.
The river and the selva are closely associated with each other, and land dwellers
get part of their food in the water, while river dwellers often come out to
feed on land. Ajuricaba is a representative of felines. He treats water with
a certain caution: for him, this is an alien world, and he enters the water
and swims only out of necessity – for example, during floods. However, he often
ambushes near the river, is skilled in fish catching and loves to eat it. It
is strong enough and able to pull large fish ashore. He also likes the meat
of turtles, which he can scratch out of the shell with his claws – his jaws
are rather weak for cracking the shell of this reptile.
Ajuricaba has a favorite place for fishing – it is a tree trunk, half lying
in the water. Seeing a predator come out of the forest, several turtles had
basking there jumped into the water from the trunk. Ajurikaba pays no attention
to them: catching an aquatic turtle in the water is an almost useless occupation.
Having jumped onto this trunk, the predator went to the branches sticking out
of the water and hid. Fishes like to hide in the shade among the broken branches,
and Ajuricaba often catches them simply with one precise movement of his paw
with extended claws. Sometimes he does it in a canter – throws the fish high
into the air and catches it with his paws or right with his mouth.
The predator lay down on the trunk and looked into the water. The glare of the
sun makes it difficult to observe underwater inhabitants, but in the shade of
tree crowns he can clearly see how fishes swim in the water – mostly schools
of fry and small-sized fishes, which are not easy even to catch. Therefore,
when a creature resembling an eel and about two meters long swam by the bottom,
wriggling, Ajuricaba became interested in it, and began to peer into the water
intently. The writhing creature has approached the tree where Ajuricaba is lurking
– it clearly does not notice the danger. Ajuricaba grabbed the tree trunk with
three paws, and carefully raised one of the front paws to strike. And when the
underwater inhabitant was very close, the predator picked it up with its claws
in one motion and threw it onto a tree trunk. Feeling pain, the captured creature
began to wriggle and roll on the tree trunk, opening its wide mouth, but Ajuricaba
pressed it with his paw, and then bit it hard several times, and his prey stopped
escaping. The body of this creature has a recognizable bluish coloration with
thin transverse rings throughout the body. Ajuricaba got a young mboi-tata caecilian,
the meat of which he could eat full. Its meat is about as tasty as fish, but
somewhat denser, because these animals spend a significant part of their time
underground and dig holes. This amphibian is still young, and it obviously settled
somewhere in new habitats using the water – it turns out much faster this way.
But this time it was out of luck.
Having pulled the prey ashore, Ajurikaba began to eat it. He does not pay attention
to the sounds of the birds around – some kurekure parrot noticed him and began
screaming attracted several more birds. However, Ajuricaba is not hunting now,
so he doesn’t care if he’s been spotted.
On the opposite bank, branches crunched under the feet of huge creatures, and
a herd of barocavias emerged from the forest. They were grazing somewhere nearby
in the undergrowth, and now they are looking for a place to rest. The beasts
entered the water, and one of the adult females suddenly smelled Ajurikaba,
and then saw him with her short-sighted eyes. She uttered an alarming roar,
and the leader of the herd, a large big-headed male, stepped forward, pushing
the females aside. He rushed into the river and quickly crossed it almost by
wading. Without slowing down, he climbed out of the river, roaring and displaying
his huge white incisors. With such teeth, it is possible to bite in half a small
tree easily, and if Ajuricaba falls into his teeth, the beast can bite off his
paw just as easily. The warning is more than clear and unambiguous, and it is
better for him not to meet too close with these beasts.
Ajuricaba grabbed the half-eaten caecilian and dragged it away from the river.
The barocavia male pursued him for several steps, but then stopped and simply
began to roar loudly, baring his incisors. He can afford to express his aggression
openly: an adult barocavia, while it is healthy and full of strength, has actually
no enemies in the selva.
… Years have passed. Each species has its own lifespan, so someone’s life has
already ended while someone else is just entering the time of physical flowering.
In the selva, small hummingbirds most often do not live up to two years, but
in the first year of life they can theoretically see their own grandchildren.
Other birds live much longer: among the kurekure parrots there are still centenarians
who even saw Tisquesusa’s mother and continue to live, be healthy and raise
posterity, but many of the birds in the flocks of this species are much younger.
Ajuricaba died first. This is quite expected: the life of a predatory beast
is short, and physical exertion is great, so every day of life, except perhaps
the earliest childhood, turns into a test of strength and vitality. In addition,
too much happens in predator’s life: a collision between predator and prey often
leads to danger to both of them. Physical exertion and accidental injuries are
common during hunting. It also happens that the prey sells its life dearly,
inflicting injuries on the predator, which can eventually be fatal. Perhaps
Ajuricaba could have lived longer – he was still far from the age limit for
his species. But the circumstances not always favor him.
... That day, Ajuricaba was hunting jakarawas in the coastal thickets. He is
already an adult experienced male, who knows his territory and is fluent in
the art of killing. He knows the banks of the rivers, and he knows in what territories
the jakarawa herds stay. These animals are small, and they do not deplete the
plant thickets with their feeding. Ajuricaba has several favorite ambush sites,
and now he is currently watching grazing jakarawas from one of them, a thicket
of broad-leaved calatheas. The spots on his skin are in perfect harmony with
the bizarre spotted coloration of the calathea leaves, so the jakarawas, who
have poor color vision, do not notice him in this ambush. The attack position
is ideal – he just needs to wait until the jakarawas approach.
Hearing snorts and splashes, the jakarawas ran aside. Ajuricaba looked in the
direction of the river and saw how huge wet bulks – barocavias – were coming
ashore. Streams of water flow down the coarse wool of animals, and clouds of
silt swirl in the water under their feet. It looks like Ajuricaba’s disguise
is too good: they don’t notice him. If the herd does not change direction, they
will simply trample it. With a short growl, Ajuricaba jumped up, and only then
did several barocavias at once notice him – and among them was the dominant
male, the leader of the herd. An alarming roar of females was heard in the air,
and several cubs frightenedly rushed deep into the herd, under the protection
of adults. While the females hide the cubs behind their bulks, the male came
out to protect his herd. He has been leading the herd for many years, having
won leadership in it in a fair tournament with the former head of the herd.
His head with balding hair is covered with many scars – this is a warrior, hardened
in battle. Even an adult jaguarete isn’t a match for him, so he does not hesitate
for a minute, and attacks immediately: he roars, baring his teeth, and advances
on a predator. Ajuricaba is taken by surprise, he has no way out. Therefore,
he took a desperate step: with a roar, he rushed at the barocavia male, hit
him with his claws on the shoulder and jumped sideways, hoping that the large
animal would retreat, so that he could escape. The age of Ajuricaba makes itself
felt – he is already massive and not as dexterous and flexible as in his youth.
Hastily retreating from the barocavia male, he accidentally caught his paw on
the root, lost his balance and fell. Noticing this, the barocavia male chased
him – despite their huge size, these animals are very fast at a short distance.
Ajuricaba lacked literally a few steps: he did not have time to jump back behind
the trees from the path of the barocavia male, and the huge beast overtook the
predator. The barocavia male did not bite Ajuricaba, but hooked him with its
head and threw him up; a blow from the armored skull of the barocavia shattered
Ajuricaba’s ribs.
Thrown by the barocavia male into the bushes, Ajuricaba rushed to run with the
last of his strength. And with each jump, he weakens, each new breath is given
more and more difficult, and a terrible pain pierces the chest. But Ajuricaba
still managed to escape from the barocavia male. When the river and the monsters
living in it were far behind, Ajuricaba finally stopped to catch his breath.
He stood in the undergrowth for a long time, head down and breathing heavily,
and then coughed. At this time, red drops of blood appeared on the leaf of the
plant over which he stood: a fragment of one of the ribs pierced his lung. Internal
damage to soft tissues after hitting the barocavia’s head turned out to be very
significant. Ajurikaba is still alive, but can no longer hunt. With difficulty
he reached his lair, where he lay, weakening every day, and died after several
days of extreme suffering. Nature does not know mercy, and his death was more
painful and longer than the death of those who fell by his teeth. And he died
so quickly and unexpectedly that he never managed to see a single possible contender
for his territory.
The old Tisquesusa is still strong, but age is already making itself felt. He
still lives in the same territory that he settled once in his youth, and knows
it almost to the nearest step – where there are shelters, where edible plants
grow, where it is more likely to meet the enemy. It has almost stopped growing,
having reached the maximum size for its species, but age-related changes become
quite obvious: the beast’s hair gradually turns gray, especially on his muzzle.
Tisquesusa has become extremely predictable in his behavior: the time for experiments
and searches has long passed, and what he knows ensures the fulfillment of all
his vital needs. He roams his territory along a particular route and regularly
visits the thickets of polomiki lantana to eat another batch of leaves poisonous
to other animals. Thickets of this plant are still numerous in the selva – only
their location changes: in some places they degrade due to diseases or being
eaten by herbivores, while in others, on the contrary, they grow thanks to numerous
allies and supplant other plant species. Tisquesusa knows the location of these
thickets, and simply moves through the forest from one thicket to another. He
slowly wanders along the well-known path to the far end of his territory, to
the lantana thickets, which he visits less often than others. These thickets
attract him by the fact that they are located in the border possessions of several
of his relatives and have become a kind of “meeting point” for them. Myriyutherians
from several neighboring territories usually feed there, and among them there
may be females ready to mate. Tisquesusa is no longer young, but he retained
the desire to procreate and does not refuse the opportunity to realize it under
a successful set of circumstances. In addition, females, when given the choice,
prefer adult strong males. Therefore, Tisquesusa, not without reason, expects
to replenish once again the ranks of his descendants already living in the selva.
On the approaches to the thickets, he carefully sniffs the ground, but does
not notice the traces of his relatives. Usually, near lantana thickets, various
myriyutherium individuals leave their footprints, urine and droppings, by the
smell of which their relatives can identify them and find out their physiological
condition. But now Tisquesusa does not find traces of their presence, and the
oddities do not end there. Usually thickets of polomiki lantana attract birds
with their berries; therefore, approaching its thickets, Tisquesusa hears the
voices of parrots and other birds feeding in the lantana bushes from afar. But
now there is silence over the thickets, interrupted only by the usual voices
of forest birds in the forest canopy – the same ones that are heard in any other
corner of the forest. Coming out of the forest to the thickets of polomiki lantana,
Tisquesusa saw that something else was happening here – something that Tisquesusa
had never seen in his long life in the selva. A monotonous rustle is heard in
the air, and as if a blizzard literally whirls over the thickets of polomiki
lantana. However, this is a strange blizzard – not a white one, as you might
expect from a normal snow blizzard, but a black-violet-brown blizzard of many
thousands of butterflies.
Tisquesusa has witnessed a rare phenomenon, though he hardly has the sense to
appreciate its rarity and beauty. Above the thickets of polomiki lantana there
is a massive swarming of awakaparu butterflies. This butterfly species of is
one of those few insects that are able to feed on the foliage of polomiki lantana
without any harm to themselves. In the selva, they are relatively rare, but
in locations where the fodder plant grows, they are quite common, and they can
rarely be found at a great distance from the lantana thickets. Now, with such
a number that is observed above the thickets, these butterflies are unlikely
to be just ordinary, and even the word “numerous” is not indicative of their
numbers. The fact is that every few years it happens that the number of the
butterfly is at its peak, while the number of its enemies and parasites is minimal.
When these circumstances overlap, a large-scale outbreak of awakaparu number
occurs, and the number of these butterflies in their usual habitats increases
thousands of times. When a mass emerging of these butterflies from pupae occurs
in the thickets of polomiki lantana, a dense swarm of these insects hovers above
the plants. And if a single butterfly flies almost silently, then with such
a number and density of the congestion of insects, the noise of their wings
becomes clearly audible – this is the rustle that Tisquesusa heard. Absently
biting off some lantana leaves, Tisquesusa tasted the crushed caterpillars of
these butterflies on his tongue. Spitting out the food, which suddenly became
unpalatable, Tisquesusa headed back into the heart of the forest to search for
other edible plants.
The mass swarming of awakaparu butterflies is a very rare and colorful wildlife
show. Although their coloration is not bright, the wings of males flare in the
sunlight with an intense metallic sheen. In these butterflies, the abdomen also
shines, adding blue sparks to the modest colors of their swarm. Males and females
display themselves by shining brightly in the air above the fodder plant, search
for each other and mate in flight. In this way, these insects lay the foundation
for a local ecological disaster.
A few days after the awakaparu swarming, their eggs appear at the bases of lantana
flowers. Hatching tiny caterpillars first of all devour delicate flowers and
nutritious ovaries, which is why thickets of polomiki lantana lose their former
colourfulness in a matter of days, acquiring a uniform gray-green color. Due
to the activities of the caterpillars, the new crop of delicious berries of
this shrub will take a very long time to wait for. The caterpillars grow rapidly,
and after a couple of days they go down the shoots and begin to eat the foliage.
Caterpillars of different ages forage together – there are too many of them
to stay away from each other, and competition for food begins between them.
Soon, only gnawed round midveins will remain from the gray-green leaves of polomiki
lantana, which will be scraped off by caterpillars that are late for the feast.
Awakaparu larvae grow rapidly, but their appetites grow even faster. They constantly
crawl from one place to another and devour the foliage of the bush. Ten days
later, lantana thickets represent a pitiful sight. Numerous fat awakaparu caterpillars
crawl along the shoots, and the crowns of the bushes have become almost transparent,
and the sunlight penetrates to the very ground. In the thickets, greenish sparks
on the stems are noticeable from afar: the pokopoko treehoppers shine brightly
in the sun with their covers. Because of the gluttony of the caterpillars, they
are no longer hidden by greenery, and the bright sun disturbs these insects,
forcing them to search for saving shade. They feed worse, constantly crawl from
one place to another or even try to fly somewhere else, although pokopokos are
pretty bad flyers. Tapiyucan wasps fly hover above their colonies, trying to
harvest their sweet honeydew, but the pokopokos barely react to their touches.
Obviously, they are having a hard time with the outbreak of awakaparu. Some
worker wasps seize still wingless treehopper nymphs and transfer them to the
few lantana plants that have survived among the feast of caterpillars or are
located somewhere away from the main thickets. No one saves adult insects –
they are unlikely to live long, and whoever of them finds the strength to fly
away, it is saved himself.
Over the next few days, the old Tisquesusa returned to the lantana thickets
of polomiki and ... did not recognize them. He wanders among the heavily thinned
thickets of lantana, tastes the shoots of the plant in various places, and each
time, along with the plant matter, awakaparu caterpillars get into his mouth.
They have an unpleasant taste, so he spits them out. Tisquesusa will not remain
hungry – he eats plants of many species with pleasure. Also, he will not be
left without protection: the poison of lantana remains in his tissues for a
long time. It looks like he won’t be able to taste the lantana greens and berries
here anytime soon.
The activity of avakaparu caterpillars led to a decrease in the diversity of
the population of thickets: having exterminated the flowers of the plant, they
forced many nectar-eating insects and lantana mango hummingbirds to move to
other places. The temporary fantastic abundance of awakaparu caterpillars attracts
to the lantana thickets few creatures that are able to eat these animals. A
large itotoptera butterfly flies over the eaten bushes. It is a distant relative
of awakaparu – both butterflies belong to the same family. However, their diet
differs radically. Itotoptera landed on a bush and began to crawl among the
foliage gnawed by caterpillars. It didn’t have to look long: the caterpillars
crawl up the branches of the plant singly or in groups, devouring any greenery
they find. One of them will no longer have to dine today: the itotoptera grabbed
it with its modified forelegs, untwined its thin pointed proboscis and stuck
it into the captured caterpillar. Awakaparu has few enemies – eating poisonous
lantana, the insect accumulates poison in its fat, and few animals eat it in
adult consition. But even such protected insects have enemies: awakaparu caterpillars
fall prey of some predatory insects. Itotoptera crushes the caterpillar with
its legs like a tube, and carefully sucks it out. It feeds on the body fluids
of the caterpillar, but does not touch the poisonous fat – if it is not eaten,
the awakaparu caterpillar turns out to be quite edible. Having finished with
the prey, itotoptera dropped its remains, flew over to a neighboring branch
and grabbed another caterpillar. Over the thickets of polomiki lantana, several
more individuals of itotoptera fly, which also hunt caterpillars. But the harm
they put is absolutely imperceptible to the million-strong army of caterpillars
devouring lantana.
At night, avakaparu caterpillars continue feeding – it is important for them
to accumulate enough nutrients for metamorphosis. Under the cover of darkness,
tarukuwa ants appear in the thickets. They visited the lantana thickets regularly,
checking up the pokopoko colonies, but with each new night, the harvesting of
the insect secretions became increasingly scarce. They crawl across the remnants
of the thicket, but in many places the pokopoko colonies known to them have
disappeared, or they are left with a few old insects that are not capable of
producing any significant amount of sweet secretions. In search of the vanished
pokopoko colonies, tarukuwa ants began to scour the thickets of lantana, marking
their paths with odorous substances. They managed to find a small colony of
young pokopoko aside from the main thickets – on bushes growing some meters
away from them. This colony was organized during the past day by tapiyucan wasps,
which tried to save insects from starvation. There are only some dozen of pokopoko
nymphs in the colony, which is very little to satisfy the needs of the ant colony,
but the ants remember the location of these insects anyway.
Tarukuwa foragers climb the caterpillar-eaten branches of polomiki lantana.
They meet mainly awakaparu caterpillars, busily devouring the remains of polomiki
lantana leaves. When meeting with ants, the caterpillars arch their backs like
an angry cat, but continue feeding. They are poisonous, and therefore are not
afraid of most predatory insects. Only adult itotoptera butterflies, skillfully
operating their proboscii and not injecting digestive enzymes into their prey,
can suck out their body fluids without harm to themselves. Itotoptera caterpillars
also search for food on lantana plants, but they are predators, like adults.
The outbreak of the awakaparu caterpillars allowed the itotoptera caterpillar
to feed without wasting energy on searching for food – they are literally surrounded
by prey, and almost do not move during the hunt: awakaparu caterpillars stumble
upon them and turn to their dinner.
Having met an itotoptera caterpillar, tarukuwa ants try to fight it – one of
the ants pinched it with mandibles. In response, the caterpillar bent the body,
lifting its front part, and splashed at the attacker with a poisonous belch
– a semidigested awakaparu caterpillar. The itotoptera caterpillar eats awakaparu
caterpillars along with their fat and accumulates toxic substances in its body,
and until the prey is digested, the vomit of the itotoptera caterpillar is also
poisonous. Itotoptera caterpillars are among the few predators that are able
to eat a poisonous insect. The ants unsuccessfully attack it, but the caterpillar
defends itself by shaking its head from side to side and meeting the attackers
with a spray of semidigested food. Mixed with the rapidly solidifying secretion
of the salivary glands, this vomit turns into an effective weapon: several ants
stuck to the vomit and poisoned themselves, while trying to get free. The rest
of the ants will have to forget the way here for a long time – the itotoptera
caterpillar can effectively defend itself.
The mass congestion of awakaparu caterpillars in a limited area carries a certain
danger to the health of these caterpillars. During the day, each of them inevitably
comes into contact with several relatives, and the consequences of such crowding
were not long in coming.
One of the awakaparu caterpillars got sick. It turned pale, its movements became
sluggish, and its appetite gradually decreased. In the first days after infection,
it differs little in appearance from its relatives, except for color and behavior,
but its disease gradually progresses, and soon fungal hyphae appear from the
spiracles on the sides of its body – the caterpillar is affected by Entomophthora
fungus, and its days are already numbered. The mycelial filaments of the fungus
on the surface of its body gradually become thicker, and the caterpillar stops
feeding and simply hangs upside down, holding tightly to the twig with its hind
pairs of false legs. Fungal coating covers its entire body with a thin cotton-like
film, which grows every hour. The spores of the fungus from an infected insect
scatter over a short distance, but this is enough for the fungus: they infect
caterpillars feeding in the neighborhood, which also become covered with a cotton-like
white coating after a few days. Under conditions of crowding, caterpillars are
rapidly and massively infected by entomophthora. They are no longer destined
to complete their life cycle: they die and mummify, hanging on the branches,
and the wind spreads the spores of the fungus. But the death of hundreds of
caterpillars is invisible against the background of a short-term, but truly
colossal local outbreak of the species.
…Two weeks passed. The local ecological catastrophe in the lantana thickets
is nearing its logical end. The caterpillars ate everything they could, and
in fact destroyed the foundation of their own well-being. Now the shrub does
not grow and does not bloom, and those caterpillars that managed to turn into
a chrysalis before the collapse of this natural community were a little more
fortunate than others. The life of a number of animal species depends on the
well-being of lantana thickets, and dependence on this plant has forced them
to search for new habitats. Therefore, life is no longer seething in this place
– hummingbirds do not fly, sparkling their plumage, butterflies do not flutter,
wasps and bees do not buzz. The thickets of polomiki lantana still look very
bad – all the foliage is eaten by caterpillars, and the remains of the leaves
they gnawed withered and fell off. However, some changes for the better are
already noticeable – like a timid hope for a good future, tiny leaflets covered
with pubescence appear on the tips of the shoots. Despite the rampant feast
of awakaparu caterpillars, the plants remained alive. The underground part of
the shrubs is not damaged, and through the forest litter, enriched with caterpillar
droppings, suckers of lantana emerge in various places – the thickets are gradually
restoring.
On the forest floor lay a whole layer of awakaparu pupal skins and... a lot
of dead adult butterflies. Awakaparu feeds on polomiki lantana both at the larval
stage and in the adult stage. Therefore, caterpillars that completed metamorphosis
successfully became victims of their own gluttony – turned to adult butterflies,
they simply did not find flowers to suck nectar immediately and get from it
the energy necessary to find a mate, copulate and produce eggs. Only few of
them managed to fly away and survive – they came into the world with a slightly
larger supply of nutrients accumulated by the caterpillar, so they were able
to move to another part of the forest to find new thickets and lay their eggs
there. The other ones, not finding the strength for the nuptial flight, died
without giving offspring.
Not only hunger caused the death of awakaparu. Tiny holes are visible in the
bodies of some butterflies and in the shells of pupae: parasitoid wasps took
advantage of an outbreak in the number of hosts and took their share of the
butterfly population.
A very rare situation has arisen: the lantana has temporarily lost both friends
and enemies, so now it must fight for life itself, but at the same time its
population is not in the best position. Among the stunted lantana bushes, other
plants begin to grow. They take advantage of the weakness of lantana bushes
and shoot in its thickets, supplanting it actively. The suckers of trees actively
breaks through the wood litter, and their young root suckers shade the lantana,
preventing it from recovering normally. Seeds of various plants sprout along
the edges of the lantana thickets – the rest of the forest continues to live
its own life, and other plant species have not been affected by the problems
faced by polomiki lantana. Some seedlings die quickly, poisoned by secretions
of decaying lantana leaves; others actively cling to life and outspread new
leaves. The situation is still not in favor of lantana, and it is possible that
in this place thickets of lantana will be gradually replaced by other plants.
But it is possible that a series of accidents can tilt the situation in favor
of lantana, and it will regain lost ground.
The awakaparu butterfly outbreak ended even faster than it began. Two or three
generations of butterflies increased their numbers, bringing this ecological
mini-catastrophe closer, and the last generation, having danced at this celebration
of life, left offspring almost completely doomed to death. Short-lived insects
die quickly, and they do not know the hardships of old age – they literally
burn on the altar of life for the sake of future generations of their species.
Large and long-lived animals have to face all the hardships of old age – they
can live to post-reproductive age, although they rarely die of their own death.
...Over the years, Tisquesusa gradually weakens; age-related changes are more
and more clearly manifested in his body. The muzzle of the beast turned gray
noticeably. By old age, his molars have become weaker – they grow more slowly,
but they still wear out just as quickly, so it becomes worse for him to chew
food. To avoid problems with feeding, Tisquesusa moved closer to the jakarawas,
on the river banks. Here he spends a lot of time and feeds on soft marsh vegetation.
Soft plants are easy to chew, and Tisquesusa almost does not search for food
in the forest. Having grown old, he only occasionally visits the thickets of
polomiki lantana, but does not eat it in such quantities as before, preferring
softer plants. The change in lifestyle is fraught with a certain danger: along
with marsh plants, Tisquesusa swallows a number of snails, and along with snails,
helminth larvae enter his body. The jacarawas feeding in the same places are
almost completely infected with helminths. A small amount of polomiki lantana
leaves helps them cleanse themselves of parasites, but not of all, but only
of those that have settled in their intestines. Tisquesusa is not afraid of
such a danger: due to eating a large amount of polomiki lantana foliage, quite
a lot of plant poison is accumulated in its organs and tissues, and even the
meat of this beast is almost inedible for predators. Helminth larvae, getting
into his body, die soon. Although recently Tisquesusa eats polomiki lantana
leaves less often and the content of lantana poison in his tissues is gradually
decreasing, it still remains sufficient so that the helminths do not survive
in his body.
However, Tisquesusa all the same has his own parasites. The quills growing on
the back and sides of myriyutherium protect against a large predator, but make
their owner defenseless against small blood-sucking insects and mites. Throughout
his life, Tisquesusa suffers the inconvenience caused by them – right after
birth, he got his own population of ectoparasites from his mother, and during
his life it was constantly replenished and renewed. Midges and mosquitoes crawl
in the wool of Tisquesusa; they climb into his nose, eyes and ears, and between
the quills in the thickness of the wool ticks creep, which he constantly collects
on his body during his wanderings through the undergrowth.
In his youth, Tisquesusa paid little attention to his parasites – he was a healthy
growing organism, and his body compensated for the harm caused by parasites.
However, now, in old age, he feels their harm more acutely, and tries to get
rid of them at least partially. Tisquesusa discovered a very pleasant way to
get rid of pesky parasites. Usually, myriyutherians get into water bodies only
when necessary – during floods, for example. But now Tisquesusa went into the
water of his own free will and gladly lay down on the river bottom, sticking
out of the water only part of his head. He raised his quills so that the water
soaked his fur to the very skin, and shook himself. Unsuccessfully escaping
from the water, small bloodsuckers leave his skin, and they are immediately
caught by small fish and shrimps that surrounded his body. Tisquesusa felt that
water relieves itching from parasite stings. Soothed by the pleasant sensation
of coolness, Tisquesusa dozed off, lying in the water.
The impact of a mighty paw on the skull instantly stunned him; teeth seized
his throat and tore the muscles, trachea and blood vessels. Frightened fish
rushed away in flocks as Tisquesusa’s body twitched convulsively and froze motionless.
A red streak of blood stretched down the current, and several fish busily swam
into it, trying to find the source of this tempting smell. A large predator
with a spotted skin seized with its teeth and dragged the lifeless body of Tisquesusa
to the shore, and the blood of the old myriyutherium flowed onto the sand. Turning
the carcass over, the predator tore the skin on its stomach and began the feast.
The killer of Tisquesusa was one of the sons of Ajuricaba. After wandering in
alien territories, he returned to the domain of his father and lived here for
several years. During this time, he has repeatedly tried to attack Tisquesusa,
but the old myriyutherium always proved cautious and was ready to rebuff him.
But now the son surpassed his father in astuteness and managed to get the coveted
prey.
From a branch of a tree, a large bird of prey with a black head and fierce red
eyes watches the feast of the son of Ajuricaba. This is the master of heaven
in this part of the forest – the adult illapa Saguanmachika. He is only a little
younger than the just killed old Tisquesusa, but he is still full of strength.
He is about thirty-five years old – it is a fine age for his species. He still
owns a huge territory of the selva and continues to live with the same female.
They have already bred chicks more than once, and once two descendants, which
this pair managed to raise successfully, left their nest at once.
Saguanmachika noticed the large kurekure parrot in the thickets of polomiki
lantana, quickly took off, flew at his prey with lightning and instantly killed
this bird. He did this so quickly and deftly that the parrot did not even have
time to give an alarm, and not a single bird in the forest began to mob the
predator. Having returned to the branch with his prey, Saguanmachika began to
eat, and the green kurekure feathers swirled in the air. There is still strength,
eyes are still keen, and the reaction is lightning fast – Saguanmachika is in
the prime of life, and may well expect to live for the same number of years
even in the harsh conditions of competition that reign in the South American
selva.
The selva was silent for a moment. But in seconds, butterflies fluttered again
over the lantana garden, bees buzzed, motley birds sang in every way ...
Bestiary |
Lantana-eating
porcupine, myriyutherium (Myriyutherium armatus)
Order: Rodents (Rodentia)
Family: New World porcupines (Erethizontidae)
Habitat: forests and forested savannas of Amazonia.
Prehensile-tailed porcupines represent a group of rodents characteristic of
the selva of South America. They survived the human epoch and explored various
ecological niches actively in the Neocene, giving rise to a number of unusual
representatives. One species of this group is myriyutherium, or lantana-eating
porcupine, a descendant of the bicolored-spined porcupine (Coendou bicolor).
The name is derived from the name of the Brazilian porcupine in the Caribbean
language.
The body length of the lantana-eating porcupine is up to 120 cm, and the tail
is up to 150 cm. The height of an adult animal at the withers is about 80 cm;
weight is over 180 kg. This beast has a squat and strong build, as well as elongated
front paws with tenacious claws up to 15 cm long, suitable for digging earth
and climbing trees. During walking, the tips of the claws are tucked inward,
and the animal rests on the outer edges of the hands, where thick corneous calluses
develop. The hind legs are plantigrade. It resembles a bear with a long tail
in physique. The neck is thick; the head is rounded with an elongated muzzle,
the nose is similar to a pig’s snout and helps to dig food out of the ground.
The bones of the skull are thickened: the head is used as a battering ram during
intraspecific fights. Myriyutherium has small eyes; its vision is poor, the
animal is short-sighted. Long vibrissae grow on the muzzle, and the beast has
keen sense of smell.
The sluggish animal has well-developed means of passive protection: on the back,
neck, shoulders, hips and sides, as well as on the upper side of the tail, corneous
quills up to 50 cm long grow among the wool. The longest quills are on the middle
part of the back and on the sacrum. The quills that have finished growing do
not hold firmly in the skin and may be pulled out of it easily. Myriyutherium
has also an additional means of protection: a “mace” develops at the tip of
the tail, formed of enlarged and heavy tail vertebrae. On the skin covering
the “mace”, thick strong quills up to 25 cm long grow, directed to the sides.
The main color of the wool of myriyutherium is dark gray, the tips of the paws
are white, the claws are black; the quills are white with black tips, and some
of them are completely white. On the muzzle of the animal there is an extensive
white spot covering the forehead, tip of the muzzle, lips and cheeks. The tip
of the muzzle is pink, covered with bare skin. Large orange incisors represent
a bright spot in the appearance of the beast. The defending animal stands up
on its hind legs and displays its incisors, opening its mouth wide.
Lantana-eating porcupines live in the forests and forested savannahs of the
Amazon area, and are active both during the day and at night. Usually this animal
is a loner, but sometimes they can gather in small groups, especially in feeding
areas. The lantana-eating porcupine looks for food both on the ground and on
trees: myriyutherium can climb large trees. It usually does this to escape floods,
or to eat fruits and leaves. Also, the lantana-eating porcupine can sleep in
trees. The diet is very diverse and consists mainly of vegetation: on the ground,
myriyutherium eats roots, tubers, herbs, leaves, berries and mushrooms. On trees,
the lantana-eating porcupine eats fruits, leaves, and even whole epiphytic plants.
Less commonly, the animal feeds at the river banks, where it eats the diverse
aquatic vegetation.
One of the distinguishing features of the physiology of the lantana-eating porcupine
is the ability to eat the poisonous bush – polomiki lantana. Often a group of
porcupines gathers near the thickets of this plant. During feeding, myriyutherium
sits on its hind legs, and bends down the branches of a bush with its front
legs and eats them. The rodent also feeds on the ripe fruits of this plant,
acting as a seed disperser. The plant’s toxins accumulate in the animal’s tissues,
thus rendering it inedible to most predators that can handle the rest of this
species’ defenses. Only a few predators that have developed immunity to poison
prey on these porcupines.
The mating season is not expressed; males gather near the female ready for mating,
being guided by her smell. If two males meet near a female, they arrange a tournament,
roaring loudly and waving their tails from side to side. Displaying his strength,
the male stands on his hind legs and swings his tail. Male tournaments are usually
not accompanied by physical contact; occasionally, a larger male can lightly
bite its weaker opponents on the paws, forcing them to leave the female without
a fight. If the rivals are approximately equal in strength, the female chooses
the male she likes. Then mating occurs, after which the male and female leave
each other. Females have permanent territories, and males usually wander through
the forest through the territories of several females and do not stay anywhere
for a long time.
Pregnancy lasts up to six months; there are 1 to 3 cubs in a litter. They are
born well developed, and within a few hours after birth, they are able to follow
their mother. The mother constantly communicates with the cubs using sounds,
and in case of danger hides them under her body. Cubs feed on milk for 5-6 months,
but from the age of one month they begin to switch to adult food, although lantana
shoots begin to be eaten only from about six months of age. At the age of two
years, young animals leave their mother; puberty occurs at the age of 4 years.
Life expectancy is up to 40-45 years.
This mammal species was discovered by Mamont, the forum member.
Jakarawa,
marsh deer agouti (Jakarawa cervoides)
Order: Rodents (Rodentia)
Family: Agoutis (Dasyproctidae)
Habitat: South America, swamps, riverbanks and lake shores with dense reed thickets,
often flooded wet savannahs, humid Amazonian jungle.
The Neocene epoch contributed to the outbreak of adaptive radiation of South
American caviomorph rodents, giving rise to a huge variety of the most interesting
animals, which at the same time, in the course of convergent evolution, often
became similar to many extinct animals of the Holocene or Pleistocene. Noteworthy
is the evolution of small rodents of the agouti family, which in the Neocene
gave rise to very large forms similar to Pleistocene megatheres – groundsloth
rodents. The evolution of small rodents into these giants was accompanied by
the appearance of a large number of side lineages, some of which died out soon,
while others had taken roots in their own ecological niches.
One of the agouti descendants is a herbivore similar to the Holocene South American
marsh deer, which was called the jakarawa (jakarawa – “deer”, from the language
of the Caribs), or marsh deer agouti. It is difficult to imagine that this small
graceful animal is a fairly close relative of the giant groundsloth
rodent from the plains of Patagonia.
In its appearance, this beast resembles African chevrotains, but is distinguished
by long slender legs. It is a digitigrade animal with three-toed limbs. While
walking, jakarawa supports on the terminal phalanges of the fingers and toes,
equipped with soft leathery pads – this is an adaptation for walking and running
on marshy wetland soil. Claws are thickened and hoof-shaped. Between the digits
there are membranes for swimming. The height of the animal at the shoulders
is from 90 cm to 1.2 m, the body length in females is up to 1.3 m, weight is
up to 35 kg; in males, the length is up to 1.5 meters, and weight is up to 50
kg.
The animal has no horns. The jakarawa’s ears are large, rounded and mobile –
the animal has very keen hearing. Although it also has sharp eyesight and sense
of smell. The eye sockets are shifted to the top of the skull. The nose of the
animal is extended into a mobile proboscis, which allows digging soft silt at
the bottom of reservoirs in search of plant rhizomes.
The coat of males during the rut turns a rich reddish-brown color, the rest
of the time it is dark brown, in females it is light brown. The legs are dark
brown to black in color. The cubs are zebra-like in coloration: brown and red
vertical stripes alternate on their sides. In case of danger, the cubs hide
among the grass or reeds and freeze. In case of danger, adult animals jump into
the water and escape by swimming, and even dive to a depth of 3-4 meters.
Jakarawa inhabits swamps, banks of South American rivers and lake shores with
dense thickets of reeds, as well as often flooded wet savannas. Also, this species
is found in the Amazonian rainforest.
In its diet, jakarawa differs significantly from the ancestral form – the jaws
have become weaker, and the beast no longer eats nuts with a hard shell. The
food of this species includes various aquatic plants, as well as water lilies
and marsh grasses, but in areas where fruit trees or berry bushes are found,
animals are happy to remember the food habits of their ancestors, eating fallen
fruits, or even browse bushes, eating leaves along with berries. Thanks to the
strong incisors and powerful molars inherited from the agoutian ancestors, jakarawa
can even crush the seeds. Jakarawa also feeds on leaves, roots, bark of small
trees and shrubs.
Jakarawas are diurnal animals that keep either alone (young males do it more
often), or in monogamous pairs, or in small groups of up to 5 animals (as a
rule, this is a breeding pair and cubs accompanying them for about a year).
The largest males can even afford a harem of two or even three females. In such
cases, a small herd is formed around a large male – up to a maximum of 10 individuals.
The mating season is not expressed. In this species, males do not arrange an
aggressive fight for the female. Basically, jakarawa males treat each other
non-aggressively – the choice of a sexual partner is carried out by the females
themselves.
Jakarawa females give birth once a year to two (rarely one or three) well-developed,
mobile cubs of a characteristic striped color with eyes opened. Until the age
of two months, they feed mainly on milk, but from the first weeks of life they
begin to taste the food of adult animals. At the age of six months, young animals
completely switch to “adult” food. Having reached the age of one year, young
animals leave their parents. Young animals become sexually mature at the age
of about 2 years (females even at the age of 18-20 months), and the life expectancy
of these animals is up to 15 years. The main enemies of jakarawa are predatory
mammals and birds, however, adult animals can be attacked by tyrannocharax
.
This mammal species was discovered by Wovoka, the forum member.
Macrokupara
(Macrokupara megapotos)
Order: Carnivores (Carnivora)
Family: Raccoons (Procyonidae)
Habitat: selva of Amazonia, disturbed forest areas.
Picture by Cossus
By the Neocene, the bear family completely died out, and the
role of heavy-built omnivorous forest-dwelling animals passed to some descendants
of small omnivorous animals – most often raccoons and mustelids – that survived
during the Holocene-Neocene ecological crisis. In South America, such an animal
is macrokupara, which is partly an analogue of the spectacled bear, extinct
by the Neocene. This beast lives in the tropical rainforests of northern South
America, in the Amazon and Hippolyta river basins. It is a descendant of the
kinkajou (Potos flavus), a small tree-climbing raccoon of the forests of South
America (hence the name: “kupara” is kinkajou in Caribbean).
Macrokupara is a predominantly terrestrial animal of massive build: body length
of 1.5-2 m, height at the withers 80 cm in females and 90 cm in males; weight
is from 80kg (females) to 150kg (males) kg. This beast has a rounded head on
a short neck, round widely spaced ears and a short muzzle. It has a long prehensile
tail – up to 1 meter long. This feature is an atavism to some extent, since
the macrocoupara, due to its weight, spends less time on trees than its ancestor,
and, moreover, does not climb thin branches.
The wool is short, but thick and velvety; the color of the coat is brown on
top, rusty-red on the throat and belly; muzzle is black. The back of the tail
is ochre red with a black tail tip. There is no sexual dimorphism in coloration.
The animal has long hooked claws that help climb trees and dig in the ground
in search of food.
This is a crepuscular and nocturnal animal that spends the day in shelters –
usually in the hollows of large trees or the hollow latticed trunks of strangler
figs. During sleep, the prehensile tail helps the animal to fix on the branches
better. At night, animals actively feed in the undergrowth or climb trees in
search of food. Macrokupara feeds on grass shoots, fruits, berries, rhizomes,
invertebrates and small vertebrates, bird eggs, and occasionally attacks the
young of various large herbivores. The animal can feed on polomiki lantana berries
(which are non-toxic, unlike other parts of the plant), spreading the seeds
of this plant throughout the forest. Thanks to its velvety wool, which protects
against bee stings, macrocoupara can ravage bee nests and eat honeycombs with
honey and bee larvae.
Unlike the ancestor, the animal is completely solitary. Each male controls a
territory of 150 hectares; his territory intersects with smaller territories
of females. Territory boundaries are marked with scent marks and urine.
Macrokupara does not have a pronounced mating season: when the female is ready
to mate, she utters loud sounds similar to the sound of a cricket. Also, her
urine acquires a special smell, which is felt by males gathering in her territory.
Macrokupara males try to avoid each other, but near a female ready for mating,
they enter into short but fierce battles, tearing each other’s skin with their
claws. So a hierarchy is formed between the beasts, and the winner receives
as a reward all the females who have reached puberty, located on his territory.
Before copulation, the male stimulates the female by licking her.
Pregnancy lasts 120-130 days; the female gives birth to one, occasionally two
cubs. Newborn macrocuparas weigh from 150 to 200 grams, have a length of about
30 centimeters and are covered with sparse silver-gray hair. There is so little
hair on the pink belly that it seems to be naked. Cubs are born deaf and blind.
Only after five days they acquire the ability to hear sound, and open their
eyes after 15-20 days. After about seven weeks, the young animal begins to eat
solid food, and after about four months, the female stops feeding the cub with
milk. The cub stays with the mother for a long time and becomes completely independent
only after being a year old. Males become sexually mature at the age of 3 years,
and females – at the 4th year of life. Life expectancy is about 35 years.
This mammal species was discovered by Wovoka, the forum member.
Jaguarete
(Leopardus jaguarete)
Order: Carnivores (Carnivora)
Family: Cats (Felidae)
Habitat: South America, forests and forested savannas of Amazonia region.
Picture by Wovoka
The ocelot (Leopardus pardalis) managed to survive the era
of global ecological crisis due to its high abundance, wide range, small size
and varied diet. In addition, deforestation has led to the hybridization of
ocelots with the pampas cat (Leopardus colocolo). Hybrid individuals differed
from parent species in more flexible behavior, which allowed them to survive
in changing conditions. During the stabilization of natural conditions, the
descendant of these hybrids populated the newly formed tropical rainforests
of South America, where it turned into one of the top predators – jaguarete,
an ecological analogue of the jaguar (the name of the animal means “jaguar”
in the Guarani language).
The body length of the jaguarete is up to 180-190 cm; the tail is 130 cm long.
In its physique, jaguarete resembles something between a leopard and a jaguar
– it has rather muscular paws, a strong build, and a short thick neck. The head
is slightly elongated, with large ears. On the neck there is a small longitudinal
“mane” of elongated black hair, stretching from the base of the skull to the
shoulders.
On the inner toe of the front paw there is a very large claw, up to 10 cm long,
with the help of which the animal inflicts deep wounds on prey – in this feature
it is convergently similar to Asian
daggerclawers (Pugionyx). The fangs are elongated; their tips protrude slightly
from the closed mouth. The pads on the front paws are keratinized, which allows
the animal to keep firmly on the branches and trunks of trees.
The jaguarete has a thick, velvety coat of bright red background coloration
with large ring-shaped black spots. Occasionally a pale color morph appears
– of fawn color with a gray pattern. On the tail, the spots are replaced by
narrow rings; the tip of the tail is black and white. The tips of the paws are
light; the pads are pink. The head is is also bright red; there are small white
spots under the eyes. The nose is hairless and pink. The ears are black with
a red spot on the outer side at the tip of the auricle. The eyes are light green.
Jaguarete inhabits various biotopes – both selva and forested savannas; this
predator is not found in open areas. Despite its very large size, this predator
is graceful, has a light build and easily walks along the branches of trees.
Sometimes it can calmly rest at a height of 30 meters above the ground. The
beast can climb large trees, scrambling the trunks and aerial roots of vines,
like climbing a ladder. Despite the light physique, the beast is very strong
and is able to drag large prey up the tree. During floods, it swims very well.
Jaguarete is territorial, marking the boundaries of an individual territory
with claw marks on trees and urine. Also, sometimes these animals “talk” at
a great distance with the help of a loud roar.
The diet of the jaguarete is very diverse: it eats large crabs and insects,
amphibians, fish of various sizes, various mammals and birds; it hunts both
in day and night time. It often hunts in rivers, and then it is able to pull
ashore a small pikecharacid,
green boltergiller, or aquaguana.
After the flood, the animal often switches to feeding on fish remaining in temporary
ponds, catching it as the reservoir dries up. Protecting its prey from competitors,
it often eats it up a tree and returns to it for 2-3 days. Also, jaguarete is
the only predator capable of eating adult lantana-eating porcupines: with a
paw strike, it turns the rodents back down, and then kills them with a bite
and a claw strike. Also, the beast can attack a rodent from an ambush and kill
it with claws and teeth. Toxins obtained from food accumulate in the meat of
a rodent, however, the predator itself has developed immunity to this poison,
and these toxins, along with food, enter its intestines, where they kill the
helminths. However, more often jaguarete preys on the cubs of this porcupine,
whose meat is less toxic. Sometimes this predator even eats fruits, enriching
its diet with vitamins and a certain amount of cellulose.
The breeding season is not expressed. The male finds a female ready for breeding
by smell – she actively marks her territory during estrus and calls the males
with loud cries. After mating, the cats leave each other. After 3 months, the
female gives birth to 2-5 kittens. It is noteworthy that before giving birth,
the female moves to the ground and arranges a den in a secluded place. For 6-7
months, kittens are fed on milk, but already in the third month of life they
begin to eat meat. At the same time, the cubs begin to leave the nest and explore
the world actively, as well as learn to climb trees. The cubs live with their
mother for about 3 years, and then they begin an independent life. Sexual maturity
occurs at the 5th year of life, life expectancy is 18-20 years.
This mammal species was discovered by Mamont, the forum member.
Forest
broad-toothed bat (Latiodon sylvanus)
Order: Bats (Chiroptera)
Family: Common bats (Vespertilionidae)
Habitat: South America, tropical rainforest.
In the Neocene epoch, chiropterans represent one of the largest orders of mammals,
yielding only to rodents. Their greatest diversity is concentrated in the tropics,
and here there is the most intense competition between them. The consequence
of this has been a significant specialization of tropical bats in terms of habitats
and preferred types of food, designed to reduce this competition. In the tree
crones of the South American rainforest, many species of bats live on a wide
variety of food types. One bat species living in this area has switched to feeding
on the contents of bird eggs – this is the forest broad-toothed bat.
The most characteristic feature of the appearance of this species is the dental
system. The broad-toothed bats have only the middle pair of incisors in each
jaw, but they are very wide and strong, a bit reminiscent of rodent teeth. The
canines are very small and often do not erupt. There are two pairs of molars
in each jaw, and they are tuberculate. These features of the dental system are
closely related to the characteristics of the diet of the species: the forest
broad-toothed bat feeds exclusively on bird eggs. Having found a nest with suitable
eggs, the bat bites off part of the shell with its incisors and licks out the
contents of the shell with its tongue, which edges are covered with numerous
epithelial villi.
Forest broad-toothed bat is a small bat species: body length is about 12 cm,
wingspan is up to 25 cm. Wings are wide, with rounded edges; the flight is maneuverable,
the animal is able to make turns in the air and change sharply the direction
of movement. These bats fly exclusively in the upper level of the forest among
the branches, never descending into the undergrowth.
The wool is gray with a dark stripe running down the spine and some dorsal spots
on the sides of it. Such coloration helps the forest broad-toothed bat hide
on the branches of trees. The claws on the hind legs and on the wing thumb are
well developed. The tail is moderately long, included in the interfemoral membrane.
The ears are short and wide, with blunt tips, able to fold forward. There are
no outgrowths on the muzzle. The nostrils are equipped with skin valves and
are able to close when the animal licks off the bird egg. The tongue is able
to protrude from the mouth to the length of the head.
Feeding on liquid food caused certain changes in the physiology of the animal.
The stomach has folded walls and is able to stretch greatly, containing a large
amount of liquid food. The walls of the stomach are permeated with blood vessels,
and excess water is removed from food first. The kidneys of this species are
large, and the bladder is able to greatly stretch. This is due to the peculiarities
of digestion: after feeding, the broad-toothed bat stays on a branch in a shelter
for some time, and at this time the kidneys quickly “pump out” excess water
from food through the blood. Urine accumulates in the bladder, and the animal
empties it immediately before takeoff, so as not to betray its presence ahead
of time.
Activity peak in this species is predominantly in the morning and afternoon
time. Flying through the forest, the forest broad-toothed bat searches for nests
of birds by smell and with the help of echolocation. Finding an unguarded nest,
the bat lands and sniffs the eggs. If they are recently laid, the bat lands
into the nest, quickly bites through the egg and licks its contents. Having
filled its stomach, the animal crawls out of the nest and hides for some time
among the epiphytes or in cracks in the bark, while its food thickens in the
stomach. Before taking off, the bat empties its bladder, thus getting rid of
the water swallowed along with food. In one flight, the forest broad-toothed
bat is able to drink a volume of 5-6 eggs the size of a quail one. During the
day, the animal flies to feed 2-3 times.
Forest broad-toothed bat lives in small colonies, numbering up to 10-15 individuals,
hiding under large leaves of palm trees or other broad-leaved plants. Strict
food specialization gave rise to another feature of its behavior: the members
of the colonies share food with each other, regurgitating it for each other,
like vampire bats (Desmodus) of the human era.
Seasonality in reproduction is not expressed. A female gives birth to one cub
twice a year. It becomes independent at the age of 3 months, and puberty occurs
at the age of 2 years. Life expectancy usually does not exceed 15 years.
In the tropics of South America, a close species is found – wetland
broad-toothed bat (Latiodon paludiphilus). This species differs from
the forest species in its preferred habitats: it keeps among coastal thickets
of marsh plants. In size, this species is similar to the previous one, but has
a noticeable olive shade of wool and three longitudinal stripes on the back.
This species feeds on the eggs of shorebirds and waterfowl, and, if necessary,
can even swim and take off from the water. It forms small colonies (up to 10
individuals) among thickets of large-leaved marsh grasses. Spending the night,
these animals hang in a row along the stem or midrib of the leaf.
Lantana
mango (Anthracothorax lantanae)
Order: Apodiformes (Apodiformes)
Family: Hummingbirds (Trochilidae)
Habitat: selva of the Amazon basin, swampy forest areas in the immediate vicinity
of freshwater reservoirs.
Pollinators often adapted to feeding on only one plant species. So, in Holocene,
an African hawk moth Xanthopan morganii, which fed on the plant Angraecum sesquipedale,
increased the length of its proboscis. In Neocene, this trend continued with
the appearance of right-sided and
left-sided crookbill hummingbirds
in the jungle of South America. But there lives also their relative, lantana
mango.
This descendant of the black-throated mango (Anthracothorax nigricollis) is
specialized to feed on Lantana polomiki. Bird feeds in the thickets of lantana,
but nests near freshwater reservoirs. Lantana mango is a relatively large species
by hummingbird standards. Body length of males is 11 cm, of females – 10 centimeters;
the beak length is 3 cm, the tail is about 1.5 cm long. The weight of males
is 6-7 g, and females weigh 5.5-7.2 g. Wingspan is 10-12 centimeters. Legs are
0.5-0.7 centimeters long, almost not adapted to walking, black in color, with
very small claws. Beak is black, slightly bent down.
The coloration is bright, with expressed sexual dimorphism. Mango female has
white sides, male has yellow-green ones with a bronze or ochre tint. The upper
part of hummingbird male’s back is dark green; the lower part is velvety black.
Whole female’s back is colored blue-green. The plumage on the male’s chest and
belly represents the unite wide bluish-black stripe, in the female it is white
with a thin longitudinal black stripe running exactly in the middle. Male’s
wings have grayish-green coloration from above; there are 6-8 black spots in
the lower part of the wings. In the female, the upper side of wings is light
turquoise, tips of the longest primary feathers are coal-black; female’s wings
are pale red from below. Throat is covered with bronze-colored feathers, and
the sides of the head are gray with a small black stripe in the middle, continuing
the line of beak and stretching through the eye: these marks are characteristic
for both sexes. Forehead and nape of hummingbird male are light green; female
is crimson with a blue smear on the crown. Female’s tail is emerald green, a
narrow white stripe stretches along its edge; male’s tail is blue with a metallic
sheen and a scarlet spot on the tip of each feather. Tail feathers are short
and wide, with blunted tips. Young birds are colored like adult females, but
the metallic luster of the plumage is dimmer.
Lantana mango feeds mainly on nectar of lantana polomiki, rarely switching to
other plant species, and supplementing the diet with small insects, which it
picks up along with the nectar. When bird sticks its beak into a flower, a forked
lump of pollen connected by a stalk like cherries attaches to it – the bird
gets rid of this load only on another flower, pollinating the plant.
Like its ancestors, this bird is able to hover in the air over flowers and easily
flies forward with its tail and upside down. Birds are usually sedentary, undertaking
only short migrations at the edge of the range, following seasonally flowering
plants. Mangoes are very rarely aggressive, especially against other hummingbird
species. It is a very numerous species – in the places where the fodder plant
grows, the density of their popullation is at least 14 birds per square kilometer.
The male’s vocalization consists of several short calls “tnike-tnika”, usually
signaling the territorial claims of the bird.
This hummingbird has many enemies: spiders, birds of prey, mammals and reptiles,
sometimes tree-dwelling toads and frogs. Lantana mangoes protect themselves
from enemies with the help of a green color that is poorly distinguishable against
the background of foliage. When the nest is under attack, hummingbirds attack
the enemy themselves, deftly fencing with a sharp beak and aiming at the eyes
or nostrils of the aggressor.
Nesting of lantana mangoes continues all year round, a pair is formed for one
breeding cycle. Both partners take part in the building of the nest. To do it,
they cut off plant fibers (usually seed fluff) and old cobwebs, twist them into
a kind of “fabric”, and weave a cup-shaped nest with an outer diameter of 6
centimeters. Hummingbirds can disguise it from the outside with strands of lichens.
The nests are attached to thin horizontal branches of trees above the river,
at a height of about 2 meters from the water level. The total number of eggs
in a clutch varies from two to five. Eggs are round and white, 13-16 mm in diameter.
Male and female incubate the clutch alternately; the incubation period is up
to 11 days. During hatching, the birds become much more aggressive. All the
time while one bird is hatching, the other one feeds it from beak to beak. When
the nestlings appear, they stay in the nest for about 2 weeks. They are fed
mainly by insects, later pass to a mixture of insects and nectar. When the juveniles
leave the nest, the pair breaks up, and the adult birds fatten up, preparing
for a new nesting cycle.
Young birds reach sexual maturity by 4 months. The lifespan of this bird is
about 3 years.
This bird species was discovered by Feldwebel, the forum member.
Kurekure
(Amazona kurekure)
Order: Parrots (Psittaciformes)
Family: Holotropical parrots (Psittacidae)
Habitat: South America, Amazon jungle.
In Neocene, Amazonian selva is inhabited by various birds. A characteristic
group of tropical forest birds are parrots and parakeets. These are mainly descendants
of long-tailed parakeets; other groups of these birds are represented by only
a few species. In particular, the large Amazona parrots common in human epoch
have almost disappeared: their descendants are represented by few species, descendants
of the blue-fronted amazon (Amazona aestiva). One of them is kurekure (the name
means the orange-winged amazon in the Caribbean language).
Kurekure is a small bird, close in size to its ancestor: body length is about
40 cm, wingspan is 70 cm. It is similar in proportion to other amazons – it
has a rather strong physique, a relatively short fan-shaped tail, and a rounded
head. The wings are rounded, which allows maneuvering in the forest canopy among
the branches. Paws are tenacious, relatively large, with large claws. The beak
is relatively large, black in color, with a massive lower jaw, capable of crushing
hard seeds and nuts. The color of the plumage is bright: the background color
of the plumage is green, the undertail is light yellow, the legs are gray-lilac.
The back is purple, with a wide red transverse stripe on the lower back – this
coloration feature is visible during the flight of the bird. Flight feathers
are yellow, with small purple specks along the vane in adult birds. Forehead
is bright blue; there are blue rings of bare skin around the eyes. Under the
beak there is a patch of bare white skin. Sexual dimorphism is almost not expressed:
the male differs only in a slightly more massive beak and wider rings of skin
around the eyes.
Kurekures are very noisy flocking social birds. They live in flocks of several
dozen individuals and constantly communicate with the help of characteristic
hoarse crackling calls. Birds are active during the day; at night they sleep
in the tree crowns, perching on branches in rows and nestling against each other.
For the night, they choose branches in the thick of the crown, where they are
protected from the attack of owls.
Flocks of these birds constantly roam the selva, so as not to eat all the food
on their territory. The diet consists mainly of soft fruits and nuts, which
are complemented by leaves and flowers; these parrots occasionally eat insects.
By eating the fruit, kurekure helps spread various tropical plants, including
polomiki lantana. For the sake of the fruits of this plant, parrots descend
from the crowns into the undergrowth, but they are constantly on their guard
there. The enemies of kurekures are snakes, birds of prey and carnivores. Noticing
the enemy, the birds raise a loud cry, giving out the location of the predator
– the voice of kurekure is one of the danger signals in the selva. Other birds
often join the mobbing the enemy.
The breeding season is not expressed. The couple is formed for life, the bird
is looking for a new mate only after the death of the previous one. Birds arrange
a nest in a hollow, the female lays up to 4 eggs on a litter of wood chips and
rot. For about a month, the female incubates the clutch while the male feeds
her with fruits and occasionally replaces her on the nest. Both parents feed
the chicks for 9-10 weeks. In juvenile plumage, the forehead is green, and the
flight feathers are yellow or greenish and lack any patterns or spots. Sexual
maturity occurs at the age of 4 years, life expectancy is up to 40 years, some
birds live up to half a century.
This bird species was discovered by Mamont, the forum member
Illapa
(Horraccipiter illapa)
Order: Hawk birds (Accipitriformes)
Family: Hawks (Accipitridae)
Habitat: South America, tropical rainforests in the equatorial climate zone.
A large-scale ecological crisis caused by human activity and changes in nature
led to mass extinction at the boundary of the Holocene and Neocene. Among carnivorous
birds, a significant number of large species died out at this time. At the same
time, small species survived and spread, which began to develop ecological niches
of large-sized feathered predators in the process of stabilizing of natural
conditions and increasing of biological diversity. In South America, one of
the successful species was the sharp-shinned hawk (Accipiter striatus). Despite
the destruction of habitats by people and all the crises of the early Neocene,
part of the population of this widespread species survived and evolved. The
South American illapa is the largest of the descendants of the striped hawk
(its name is the name of the Inca god of thunder); it inhabits the Amazonian
jungle and mountain forests of the continent.
Illapa is a very large solitary feathered predator: the body length of an adult
is 80-100 cm; the wingspan is up to 220 cm. The female weighs from 5 to 8 kg,
the male from 4 to 6 kg. Relatively short and wide wings and a long tail allow
the bird to maneuver easily when flying in a dense forest. Illapa feeds on arboreal
and medium-sized terrestrial mammals, birds, reptiles and even other birds of
prey. The predator most often ambushes prey in the crown of a tree, choosing
thickets of epiphytic plants and lianas with wide leaves that allow even such
a large bird to hide. Due to its large size, each adult bird of this species
controls an extensive feeding area – up to 100 square kilometers. Outside of
the breeding season, each bird actively drives its relatives from its territory.
Nesting birds sometimes hunt in pairs and eat prey together. Illapa is one of
the most dangerous feathered predators of the canopy of tropical rainforest,
capable of killing prey weighing up to 10 kilograms. The inner toe of this species
carries a claw up to 10 centimeters long in an arc. With such claws, the bird
is able to stab even a sidespiny
porcupine – an arboreal rodent.
This bird has a rather dim color: the background color of the plumage is light
brown with a gray spotted pattern on the back and wings (there are rounded dark
spots on the tips of some feathers). The head is black; the eyes are ruby red
with a round black pupil. The beak is gray, with a pointed curved tip. The plumage
on the belly is gray – the feathers are covered with many thin cross stripes,
merging to an almost uniform gray background when viewed from afar. The male
has a dull yellowish spot on the throat. The pattern on the primary feathers
is also striated – thin brown stripes on a sandy-beige background. There is
also a cross-striped pattern on the tail feathers, but more raw – non-numerous
wide stripes. In young birds, the striped plumage on the belly is more pronounced,
and the head has a dark gray color.
Illapas are strictly monogamous birds, they stay with their partner for their
whole lives. Outside of nesting, birds stay in their usually adjacent territories.
This species nests in crowns of tall trees at a height of 30-45 m. Nesting usually
lasts from November to July, but some pairs begin to nest earlier or later –
this is most often done by birds whose clutch or brood has perished. Nesting
and feeding the offspring takes a lot of effort, so the illapas nest once in
two years. At this time, both birds of the pair demonstrate their skills to
each other by displaying various aerial stunts. One of the favorite games of
birds is catching a torn leaf in flight: one of the birds takes off, holding
a leaf in its beak, and throws it, and the second one tries to catch it at this
time.
There are 1-3 (most often 2) dirty-white eggs in the clutch. Incubation lasts
40-45 days; this is done exclusively by the female. Most often, one chick survives
at the breeding pair, less often two. Successful rearing of three chicks is
an exceptional rarity. At 11 weeks, the white juvenile down of the chick is
gradually replaced by feathers, from 15-16 weeks the chick already takes wing.
Up to the age of 8-10 months, young birds master hunting with their parents,
at the age of 18 months they pass to an independent life themselves or are aggressively
expelled by their parents from their territory. Sexual maturity occurs at the
age of 4 years, life expectancy reaches 60 years.
This bird species was discovered by Nick, the forum member.
Mboi-tata
(Batrachoboa rex)
Order: Caecilians (Gymnophiona)
Family: Siphonopidae (Siphonopidae)
Habitat: tropical forests of South America, forest floor in selva.
Caecilians represent a characteristic group of the tropic areas of South America,
Africa and Asia. In the epoch of the global ecological crisis, they preserved
a rather high biological diversity, and in the Neocene their diversity is also
quite large. Many species of caecilians resemble species that existed in human
epoch, but unusual, deviant forms have appeared among them. The largest species
of limbless amphibians lives in the South American selva – it is mboi-tata,
a descendant of the ringed caecilian (Siphonops annulatus).
The body length of the mboi-tata is up to 4-4.5 m (the animal grows till its
whole life); hence the name – it is one of the names of the snake-like Brazilian
cryptid minhocão. The body is cylindrical, 25-30 cm in diameter. Outwardly,
the mboi-tata is similar to other caecilians – it has an elongated legless and
tailless body, a large flat head 40 cm long with a wide mouth and small eyes,
barely visible from under the skin. Also on the head there are two tentacles
20 cm long, needed for skin breathing and chemoreception. On the skin of a dark,
blue-violet color, there are blue transverse “rings”; the upper part of the
head is brown. The sexual dimorphism is not expressed.
Mboi-tata inhabits the undergrowth of the Amazonian forests, often at a considerable
distance from the water. The animal leads a sedentary lifestyle, burrowing into
the mud and forest litter. In this position, the mboi-tata can wait for prey
for many days in succession, but sometimes a huge amphibian still crawls to
another place, and this action looks rather unusual. Mboi-tata’s lungs are small,
respiration takes place mainly through the skin. But with a sedentary lifestyle
of this amphibian, the oxygen obtained in this way is quite enough for life.
Mboi-tata sometimes swims in the water (in small shallow streams), but most
often it leads an aquatic lifestyle during floods. Its diet includes large insects
and spiders, and adult animals eat ground-dwelling amphibians, reptiles, small
birds and mammals. During the hunt, the mboi-tata acts like a “live trap”, lying
in wait for prey and grabbing it when it appears right in front of its muzzle.
The animal detects the presence of prey by shaking of the soil and smell. The
saliva of the amphibian has paralyzing properties – the animal escaped from
its mouth is immobilized for several minutes, and the amphibian finds it by
smell. An adult mboi-tata has no enemies.
Breeding occurs during the rainy season. The male and the female find each other
by smell, the male fertilizes the female, after which he leaves her. Some days
later, the female digs a burrow at the shore of the reservoir. This burrow is
vertical, ending with a nest chamber expanded like a jug up to one and a half
meters deep. In the nest chamber, the female lays 20 eggs and wraps around them
her lower body, providing them with moisture. At this time, the female hunts,
protruding the front part of the body and head to the surface. She keeps the
nest clean by exposing the back of her body to defecate from the nest and “shooting”
her droppings away from the nest, most often before or during the rain.
The juveniles hatch in the second week of incubation and live with their mother
for the first time. Their food is the upper layer of the integument of their
mother’s body, which is formed at this time. Having reached a length of half
a meter, young amphibians creep away, digging their own tunnels from the nesting
chamber to the ground surface. Sexual maturity occurs in the third year of life;
life expectancy is up to 80 years.
This amphibian species was discovered by Mamont, the forum member.
Farmer
wasp, or tapiyukan (Parachartergus agricola)
Order: Hymenopterans (Hymenoptera)
Family: Vespid wasps (Vespidae)
Habitat: Amazonian selva and to the south in forested savannas.
The main group of insects engaged in a kind of “cattle farming” is ant family,
that have formed a symbiotic relationship with a number of insect species: ants
provide them with protection for their nutritious secretions. However, this
union is far from being an exceptional phenomenon in the world of insects: already
in the Holocene, the wasp Parachartergus apicalis was known, which take care
actively for Aconophora compressa treehoppers for their sweet honeydew. By the
Neocene their trophobiotic relations have been preserved: farmer wasps take
care of other treehopper species, “horned” pokopoko insects, feeding on the
poisonous sap of the polomiki lantana bush. The second name of the wasp is “tapiyukan”
which means “wasp” in the Caribbean language. Wasps protect treehopper nymphs
from predators and parasites in exchange for their sweet honeydew. Each wasp
in the colony takes care to a small group of nymphs, which it tries not to leave
even for a minute. During the day, it can leave its herd only a couple of times
and no more than for 5 minutes. At night, when the wasps do not leave their
nest, tarukuwa ants, also known as cattleraider ants, take care of the same
nymphs. In the mornings, battles between ants and wasps for a herd of treehoppers
sometimes take place, and wasps often win the combat.
It is notable, that by the Neocene wasps became not only cattle breeders, but
also gardeners. They actively guard the “gardens” of polomiki lantana and weed
out with their mandibles any weed seedlings that interfere with the growth of
lantana.
Tapiyucan wasp colonies can be found on tree trunks and large branches. Each
colony has several queens. But in the tapiyucan families there is no polygyny,
but there is oligogyny, i.e. several queens live in the nest, who “do not tolerate”
each other and occupy separate territories inside the colony. Workers and queens
cannot be visually identified: they can only be distinguished by the presence
of mature eggs in their ovaries. Males are also similar to females, and can
only be identified by the structure of the genitals and the absence of a sting.
This wasp is of small size: a typical tapiyucan forager has a length of about
11 mm, a width of the thoracal region of 3 mm and weighs about 0.05 g. Foragers
perform three main duties: they feed their offspring with chewed insects, feed
other adults with nectar and honeydew, and carry water to the nest. With the
help of water, insects bring building materials to a condition suitable for
use.
Fertile females do not differ morphologically from working individuals and are
therefore similar in size. The abdomen is spindle-shaped with short hairs that
can only be seen under a microscope. The eyes of the wasp are large, with a
great number of facets. The body is black, only the edges of the wings are red.
Communication between insects in a colony is performed by touching antennae
and mandibles. They can also share food with each other; a request for feeding
is a slight biting of the mandibles of another individual. Queens rarely take
part in interactions with workers, except for demand for food, and do not regulate
the behavior of worker wasps.
Tapiyucan wasps feed their offspring mainly on insects, especially on lepidopteran
caterpillars. They use venom to paralyze their prey before tearing it apart.
The larvae eat exclusively meat food; wasps willingly search for carrion and
the remains of the prey of predatory animals. Adult insects are omnivores and
eat sugary substances: they drink plant nectar and honeydew, eat fruit pulp
of varying degrees of freshness.
Swarming in wasps occurs from April to May. Usually, the young queen, having
completed the metamorphosis, tries to leave the nest immediately and returns
to it only at night, when the queens of the colony are less aggressive. During
the day, she makes a courtship flight and mates with one or more males. After
fertilization, she secretes a substance that unites several hundred workers
around her and stimulates them to look for a new place to establish a colony.
When the colony moves to a new location, the workers and the queen follow a
chemical route laid out by the scouts that leads them to the place of new life.
Once the mini-colony arrives at the new location, the workers start building
the nest and the queen will soon start laying eggs that the workers take care
of. The nests of these wasps are built of paper pulp impregnated with plant
wax, and camouflaged to match the color of the surrounding vegetation. The colony,
unlike the ancestral one, can grow up to 100 thousand individuals and last up
to seven years.
This insect species was discovered by Wovoka, the forum member.
Tarukuwa,
or cattleraider ant (Camponotus tarukuwa)
Order: Hymenoptera (Hymenoptera)
Family: Ants (Formicidae)
Habitat: Amazonian selva and south in forest avannas.
Picture by Biolog
This relatively large species of ant is a descendant of the
Florida carpenter ant Camponotus atriceps (hence the name: tarukuwa, Camponotus
ant in Caribbean). In human epoch, the ancestral species was widspread in the
Americas; it lived in the pine and oak forests of North America, in the humid
savannahs of North and South America, in the tropical rainforests of Central
and South America, and also in the humid mountain forests of Central and South
America.
By the Neocene, tarukuva – its descendant – lives mainly in the Amazonian selva
and to the south of it, in forested savannas. Depending on the type of habitat,
the way of life of various populations of this ant varies significantly: in
the forest, these ants traditionally live in trees, and in forested savannas
they often build large clay anthills surrounding the trunk of a tree.
Tarukuwa are large ants of an unusual and easily recognizable color: the head
is black, the thorax is dark brown, and the abdomen is bright red; the legs
and antennae are yellowish-brown. The mandibles are triangular in shape; the
eyes are large. The maxillary palps consist of 6 segments, while the labial
ones number 4 ones only. The stalk between the thorax and abdomen consists of
one segment (petiolus) bearing a vertically directed scale. The waist is thin.
The upper side of the thorax is arched. This species lacks sting. Eggs are of
creamy color and oval-shaped; larvae are legless and worm-like. The pupae have
the appearance of a hard silky-brown cocoon.
Endosymbiotic bacteria Blochmannia (Enterobacteriaceae), which perform trophic
biosynthetic functions, live in bacteriocyte cells of the ant midgut epithelium.
Ants feed mainly on gum of trees, and bacteria allow them to assimilate the
nutrients of even such specific food in full degree. Also, these ants willingly
harvest honeydew in colonies of sap-sucking insects, mainly mealybugs. Hence
the second name of the tarukuwa ants (cattleraider ants): at night, they harvest
honeydew in the colonies of the Amazonian pokopoko treehoppers, which belong
to the tapiyucan wasps and are guarded by them during the day. At night, the
ants take care of the pokopoko colonies, attacking predators and cleaning insects
from dirt, receiving honeydew from them along the way.
The structure of the colony of this species includes several castes:
“Queen” – a reproductive female that loses its wings after fertilization. Its
only function is to lay eggs and receive food from the workers. The existence
of the colony depends on its well-being. In large colonies, there are often
several “queens” of various ages, actually replacing one another in turn;
“Princesses”: fertile winged females not yet fertilized. After the mating flight,
they found their own colonies or return to the nest and eventually replace the
main female;
“Princes”: fertile winged males, which are much smaller than females and exist
in the nest not for long. Their only function is the fertilization of winged
females during the mating flight, after which they die outside the nest;
Soldiers: sterile females responsible for protecting the colony, 1.5 cm in size.
They are distinguished by large heads with elongated mandibles;
Workers: sterile females up to 1 cm in size, born in a colony, represent the
largest number of individuals in each colony. Workers also form several size
classes.
Young fertile males and females go on a mating flight, choosing a clear windless
day for it. The flight occurs synchronously over a large area, from many ant
nests at once, including those very far from each other. During the mating flight,
mating takes place, after which the females have the opportunity to choose a
place for a new nest and start an independent life, or return to their native
colony as one of the “queens”. Males die shortly after mating in the open. Females
that have been fertilized for life lose their wings and search for a place for
their new nests.
After the construction of the first shelter, the female lays her first eggs,
from which the first workers of the colony – very small ones – will appear.
These first workers leave the nest for the first time and search for food to
feed themselves, the queen, and new larvae. Workers regurgitate the food and
pass it on to other ants, which spread it further. They are also engaged in
digging of the first galleries of the nest and serve the youth of the second
generation. From now on, the queen will only take care of laying eggs, and it
will be its main function for the rest of its life. The workers of the new generation
are, on average, larger than the first ones. Although polymorphism in size is
very pronounced in this genus, the size of workers and the number of individuals
in a colony are usually indicative of the amount of food. A few years later,
the colony produces its first winged males and females, which give rise to the
next generation of colonies.
Tarukuwa ants usually make their nest in soft wood, boring more and more galleries
as the colony grows. Outside the Amazon selva, in the south, in forested savannas,
these ants build huge “takuru” – giant clay anthills, similar to termite mounds,
up to 2 m in height, surrounding the trunk of the tree, originally inhabited
by ants. The colony can exist up to 20 years.
This insect species was discovered by Wovoka, the forum member.
Pokopoko,
or Amazonian treehopper (Aconophora amazonica)
Order: True bugs (Hemiptera)
Family: Thorn bugs (Membracidae)
Habitat: Amazonian selva and to the south in forest savannas.
Polomiki lantana is a plant species that has gained advantages in the struggle
for existence through direct and indirect relationships with several animal
species. One of them is the tapiyucan wasp, which destroys vegetation that competes
with this species. The mediator between the lantana and the wasp is the Amazonian
treehopper, or pokopoko (“pokopoko” means “cicada” in the Caribbean language),
a descendant of the treehopper Aconophora compressa, common in human epoch from
Mexico to Colombia. The host plant of the Amazonian treehopper is the polomiki
lantana shrub, although this species can also feed on other plants of Verbenaceae
family. This insect is absolutely tolerant to the toxicity of this plant.
This insect is radically different from its ancestor, which was a brown and
striped nondescript insect with a small horn. Pokopoko is an insect with a blue-green
metallic sheen, up to 8 millimeters long, with a bizarre body shape. Three horns
rise on the prothorax of this insect: lateral ones are 3 mm long, middle horn
is 5 mm long; on top of the middle horn there are three spherical outgrowths,
each one is 1 mm in diameter. Thus, the pokopoko vaguely resembles the Brazilian
treehopper (Bocydium globulare). The rear pair of wings is bright red with black
veins. The rear pair of legs is adapted for jumping.
This insect feeds exclusively on plant sap and produces large amounts of sweet
honeydew, which is the reason for a permanent war between tapiyucan wasps and
tarukuwa ants. The Amazonian treehopper lives in large colonies, sucking sap
from the stems of Verbenaceae plants, mainly of polomiki lantana. Insects keep
on the top of the shoots, in the zone of active growth. Due to the large number
of insects that suck out the plant sap, the leaves on the affected shoot become
smaller and underdeveloped, and the flowers fall off without blooming.
Reproduction takes place all year round. Males call females with a long monotonous
song, reminiscent of the sound of a stretched string. Females are guided not
only by the song, but also by decorations: the larger the horns and outgrowths
of the male, the more attractive it is to the female. Pokopoko female lays its
eggs on the stems of plants, placing them in the thickness of plant tissue with
the help of an ovipositor, and covers the place of the clutch with its body.
The total fecundity is up to 300-350 eggs, which the female lays in portions
of 20-30 eggs.
After the hatching of the larvae, they are guarded by symbiont insects: wasps
during the day and ants at night. The ants carefully spread young insects to
nearby shoots to avoid crowding and reduce competition for food. Nymphs go through
five molts and reach maturity at the age of about 45 days, and in the adult
stage, the pokopoko lives up to 60-70 days.
This insect species was discovered by Wovoka, the forum member.
Lantana
hairstreak, or Awakaparu (Symbiolycaena lantanae)
Order: Lepidoptera (Lepidoptera)
Family: Gossamer-winged butterflies (Lycaenidae)
Habitat: Amazonian selva and to the south in forested savannas, the area coincides
with the area of the host plant.
Picture by Biolog
In tropical climates favorable for year-round activity of insects,
competition between their various species can be especially fierce. One of the
ways to avoid it is to develop a specific ecological niche. This path of evolution
is demonstrated by the South American awakaparu butterfly (“awakaparu” is “butterfly”
in the Caribbean language), a descendant of the Strymon bazochii hairstreak,
common in the Holocene from Texas to Paraguay. In Neocene awakaparu lives in
the Amazonian selva and to the south in forested savannas. Awakaparu is a stenophagous
butterfly, completely dependent on the well-being of the local polomiki lantana,
a poisonous shrub. The caterpillars feed on the foliage of the bush, and the
adult butterflies feed on lantana nectar, pollinating this plant also. As a
result, the insect accumulates a significant amount of poison at the larval
stage and becomes inedible for vertebrates. In places where this shrub grows,
the butterfly is relatively common.
The wingspan is 25 mm in females and 30 mm in males; sexual dimorphism is expressed
in the coloration of the wings. The underside of the wings is ash-colored, in
males there is an oculate pattern on the back wings. In males, the front wings
are blue-black above, and the hind wings are dark purple with a metallic sheen
and three red "eyes", each hind wing has a tail. The upper side of
the front wings of females is dark brown, without shine. Their hindwings are
dark blue with a faint sheen and have one ocellus at the base of the wing. The
body in both males and females is fluffy, turquoise in color with intense shine.
Eggs are laid by females in the morning one at a time at the base of lantana
flowers. Each female is able to lay about 200 eggs in its life. The egg is white
and spherical. The development cycle takes 31 days: 5 days for egg incubation,
15 days for caterpillar stage, and 10 days for pupal stage. The enemies of this
species are parasitoid wasps, which larvae eat away the muscles and connective
tissues of the caterpillar, avoiding fat that accumulates toxic substances.
This insect species was discovered by Wovoka, the forum member.
Itotoptera
(Itotoptera carnopapilio)
Order: Lepidoptera (Lepidoptera)
Family: Gossamer-winged butterflies (Lycaenidae)
Habitat: South America, Amazonian selva.
Most butterflies in the Holocene in adulthood were nectarophages. Aphagous (non-eating)
ones and bloodsuckers were also known. In Neocene this trend continued; however,
one exception appeared here: Itotoptera from the Amazonian selva, a descendant
of one of the hairstreak species, turned to a predator.
Itotoptera is a large butterfly of the hairstreak family: the body length of
the imago is 7 cm, and the wingspan is about 12 cm. The insect has a rather
slender physique – its abdomen is elongated, and thorax and head are small.
The second and third pairs of legs are walking ones, like those of other butterflies;
the front pair is slightly larger and has a serrated edge, vaguely resembling
the raptorial legs of a praying mantis. On the head, there are large eyes, like
dragonfly’s ones, composed of numerous facets. Antennae are small and club-shaped.
The proboscis is long – up to 8 cm. At its base there are powerful pointed stylets
formed from the maxillary palps, cutting through the covers of the prey, usually
between the segments.
The forewings are rounded; the hindwings have “tails” not exceeding half the
length of the hindwing. The coloration is multicolored with a metallic sheen.
The front wings are red with small yellow spots along the outer edge and a black
ring-like spot in the middle. Background coloring at different angles gives
a reflection from lilac to purple and red shade. The hind wings are purple with
thin light green stripes along the large veins, black along the edge. The tips
of the tails are blue with an expressed metallic sheen, clearly visible in flight.
The underside of the wings has a cryptic pattern – it is of various shades of
brown with darker nerves and a light straw-colored edge. The body is light gray,
the legs are black, and the thorax is brownish.
Caterpillar is up to 5 cm long, of flattened shape with a wide body. On the
first thoracal segment and on the last abdominal segment, there are conical
spikes – one in front, and two from behind. The caterpillar also has elongated
thoracic pairs of legs and strong abdominal legs. In the head anatomy, very
large, heavily chitinized mandibles are noteworthy. The background coloration
of the caterpillar is green with yellow strokes – a pair on the sides of each
segment. The head is also yellow, the mandibles are bright pink.
The breeding season is not expressed, at any time of the year you can find various
stages of development of this species. The female lays a clutch of eggs on the
leaves of plants in the undergrowth. Itotoptera caterpillars are omnivorous:
they eat the leaves of the plant on which they live and along with them consume
various small insects, especially inactive ones (aphids, mealybugs, other caterpillars).
Older caterpillars become active predators and eat almost exclusively invertebrates.
With such a diet, the caterpillar accumulates the required amount of nutrients
within a month, and after 4-5 weeks it pupates, attaching itself to a branch
with a cobweb belt. At the same time, the chrysalis secretes a small amount
of a liquid that intoxicates the ants – with its secretions, the chrysalis “zombifies”
several ants, forcing them to guard it. A month later, the imago hatches from
the pupa.
Itotoptera is a predator; hence the name, derived from the Caribbean word for
“enemy”. It hunts insects in all levels of the forest. At the same time, it
is not specialized and is able to eat a wide variety of insects, which it seeks
with the help of sight and smell. So, it can find sedentary insects or eggs
and suck them out without much effort. The butterfly can also catch insects
in flight. The butterfly avoids attacking wasps armed with a sting and beetles
with hard body covers. Itotoptera often accompanies large animals (mammals,
birds, reptiles) and catches blood-sucking insects that annoy them. It is noteworthy
that sometimes these butterflies hunt ants, wasps, treehoppers and caterpillars
in the thickets of polomiki lantana. The butterfly grabs its prey with its forelimbs,
lands on a solid support, pierces the covers of the prey with stylets and sucks
out the insect’s fluids. There are lots of poisonous insects in the diet of
itotoptera, the poisons of which the butterfly accumulates in the body, becoming
inedible for predators. The life span of adults is up to 5 months.
This insect species was discovered by Mamont, the forum member.
Herbary |
Polomiki
lantana (Polomiki lantana)
Order: Lamiales (Lamiales)
Family: Vervain family (Verbenaceae)
Habitat: Amazonian selva and woodlands on the border of savannas.
Common lantana (Lantana camara) was a woody perennial shrub of the human era.
In the Holocene, the plant was widespread from Mexico to Colombia and Venezuela,
as well as in the Greater Antilles and the Bahamas. It has also been introduced
to many other tropical and subtropical regions of the planet: Africa, South
and Southeast Asia, Australia, New Zealand and the Pacific Islands. In most
new habitats, the plant has turned to a dangerous invasive species due to its
unpretentiousness: it is able to live in both wet and dry habitats. By the Neocene
its descendant – polomiki lantana (“Polomiki” – flower in Caribbean language)
– settled widely throughout the Amazon region, largely due to the help of the
tapiyukan wasps. Polomiki lantana is characterized by active growth, because
it intensively absorbs available soil nitrogen in ecosystems with low nitrogen
content. The species is hardy and adapted to a wide range of environmental conditions,
is able to withstand drought and waterlogging of the soil, is extremely resistant
to trampling and even fire. This plant actively maintains its position in the
ecosystem because it is toxic to most herbivores, allelopathic to neighboring
plants (produces toxic chemicals that inhibit competing plant species), and
has an extremely high fecundity (12,000 seeds from each plant per year). The
fruits of polomiki lantana are eaten by a wide variety of birds and animals
spreading its seeds, due to which the plant has an extensive range and a high
rate of gene exchange in the population. This plant is pollinated by butterflies,
bees, bumblebees and hummingbirds. Polomiki is an evergreen shrub 1-2 m high
with erect branched stems, capable of forming extensive dense thickets. Besides,
in Neocene it entered into symbiosis with tapiyukan wasps, which help the bush
to fight with competitors by weeding out all other plants, that try to grow
in it’s growth zone. Thanks to the care of wasps and unlike its ancestral form,
the plant is able to grow even in the selva, and not only on the edges of the
forest.
The leaves are stiff, gray-green, up to 5 cm long, contain essential oils and
therefore have a strong odor when crushed. They are opposite, ovoid, with a
pointed tip, serrate margins, and fine hairs along the veins. Young leaves are
more pubescent, which makes the tips of the shoots of the shrub look grayish.
To get rid of parasites, large mammals often wallow in thickets of polomiki
lantana, impregnating their wool with odorous substances. This provides them
with protection from blood-sucking insects for a while.
The flowers are small, but numerous, four-petalled, gathered in corymbose inflorescences
on long peduncles. They can be white, yellow, red, pink, orange, purple and
of other colors. Their color varies depending on the location of the inflorescences,
age and degree of maturation. The newly opened flower has a caramel smell with
a pungent undertone. After pollination, the color of the flowers changes from
white and yellow to orange, pinkish or reddish, darkening with time. This is
a signal for pollinators – a young flower contains more nectar, and when it
fades, the amount of nectar in it decreases sharply – which increases the efficiency
of pollination.
The fruit of the polomiki is a berry-like drupe with two seeds, which changes
color from green to dark purple when ripe. Green unripe fruits are inedible
for animals. Due to the hard spines on their skin, swallowing them can cause
serious damage to the digestive tract. Ripe fruits are readily eaten by birds
and other animals, which can spread the seeds over long distances, contributing
to the spread of polomiki. Reproduction also occurs vegetatively – broken off
branches take roots easily.
The plant is dangerous to most herbivores. It contains active substances that
are toxic to ungulate mammals – pentacyclic triterpenoids, which lead to liver
damage and photosensitivity. The only animal that can safely feed on lantana
– flowers, leaves and stems – is the lantana-eating porcupine, or myriyutherium.
The only animals that feed en masse on polomiki are Pokopokos or Amazonian treehoppers.
These treehoppers are pastured by tapiyukan wasps during the day and by tarukuwa
ants at night. Awakaparu caterpillars, a valuable source of protein for many
predatory animals, also graze on this plant.
This plant species was discovered by Wovoka, the forum member.
Lantana
false fruit fungus (Pseudocarpomyces lantana)
Order: Hymenochaetales
Family: Hymenochaetaceae
Habitat: Amazonian selva, on lantana trunks.
Picture by Biolog
Many fungi parasitized on trees and shrubs of the human era:
tinder fungi, rust fungi, and others. They relied mainly on wind and insects
to spread their spores. But in Neocene one of their descendants in the Amazonian
selva entered into symbiosis with the descendants of local porcupines.
Lantana false fruit fungus is a descendant of the genus Phylloporia, which has
become a specialized parasite of polomiki lantana. On shrub trunks, it forms
fruiting bodies mimicking lantana fruits: on a small stalk, of the same size
as lantana berries, and a similar almost purple color with spines on the surface.
The fruit body is closed; inside the cavity there is a folded hymenium, which
forms basidiospores. The fungus has phragmobasidia – basidiospores with a very
thick, dense shell of chitin with calcium deposits.
The fruiting bodies are so similar to drupes of lantana that feeding myriyutheres
take them for fruits and eat them. The gastric juice of myriyutherium softens
the shells of the spores, dissolving calcium, but not killing the spores themselves.
Being expelled with the droppings, spores germinate into mycelium with conidiophores
(anamorphic stage of the fungus); each of them carries an umbel of long sterigmata,
from the ends of which asexual spores – conidia – separate. Conidia are carried
by wind and insects to lantana trunks, where they germinate, and the mycelium
penetrates into the trunk. In a few weeks, new fruiting bodies of the fungus
will appear on the trunk.
The spores of the fungus, closed inside the fruiting body, cannot be spread
by wind and insects, and are not capable of germination without passing through
the gastrointestinal tract of Myriyutherium. Such a symbiosis with a mammal
allowed the false fruit fungus to occupy a unique niche: it is found only on
lantana bushes.
The fruiting bodies emit an odor similar to that of lantana fruits and attracting
myriyutheres. Sometimes the insects attracted by it destroy the fruiting bodies,
but the spores, that fall out in this case, do not germinate.
This fungus species was discovered by Biolog, the forum member.
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