Tour to Neocene
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Translated by João Vitor Coutinho, Brazil
Edited by Timothy Donald Morris, Australia
In the Neocene, Africa underwent significant geological changes.
This continent, which was previously a single and whole landmass, had split
into two parts. From the east, a large island broke away from Africa – it is
Zinj Land. But to the east of Zinj Land, in the Indian Ocean, another island
lies, also once a part of Africa, but its breakaway had happened much earlier.
It is Madagascar.
The nature of Madagascar in the epoch of the first settlers was remarkable in
its great degree of originality. There, animals that became extinct at the “Grand
Terre” have been preserved – lemurs and tenrecs, as well as numerous species
of endemic birds and plants. The human colonization of the island had became
the reason of the extinction of the most of the large animals of the island.
Among them, there were “elephant bird” Aepyornis, giant species of tortoises
and lemurs (and among these primates not only individual species died out, but
entire families also). People cut down forests, developed ground for the crop
plantations, changing landscapes radically. These activities have led to a depletion
of biodiversity of the island. Over time, the number of people on the Earth
has exceeded all the limits allowed for live beings of such a size, and it has
further aggravated the global ecological crisis. The area of pristine, primigenial
natural communities has shrunk greatly, and many species deprived of their usual
habitat have become extinct. The sensitive insular flora and fauna suffered
from the anthropogenic activities in especially great degree. The nature of
Madagascar suffered heavy losses in the human era.
And then everything was over. Humanity disappeared, becoming a victim of a fateful
confluence of many circumstances – like dinosaurs. So, the natural communities
unrestrained the rigid framework that man put upon them began to develop freely
only under the laws of nature, but not the will of the beings declared themselves
to be the “Crown of Creation”.
The terrain of Madagascar largely determined the image of its nature. The island
is divided from north to south by a mountain range, and this has had a decisive
influence on the pattern of the distribution of the natural communities of the
island. The east of Madagascar, open to the winds from the Indian Ocean, is
entirely overgrown with tropical rainforests, and savanna with small areas of
forests and wetlands dominates at the west of it. As a consequence, the fauna
of these places is drastically different.
Western Madagascar is a place where the change of seasons is particularly noticeable.
However, in this area not winter and summer alter, as, for example, in the middle
latitudes of the Northern hemisphere, but dry and rain seasons. In the east
of the island, for example, the seasonal changes are almost not pronounced.
The flora of Madagascar as a whole suffered due to the deforestation and the
introduction of exotic animals and plants by people. The savanna of Western
Madagascar is somewhat distantly similar to African one, although it has its
own special flavor. It is given by the broad “fans” of the leaves of a special
plant called Ravenala, or “travellers’ tree”. It remained here since Holocene
epoch and survived successfully the epoch of human domination (it happened,
perhaps, due to its cultivation in botanical gardens). In warm and humid climate
of Neocene this tree species thrives, forming sometimes almost monospecific
thickets along the forest edges and on well-moistened soils. Small groups of
trees of other species grow mainly near rivers, lakes and wetlands. Drier places
are occupied by grasses. Also, the savannas of Madagascar are characterized
by various baobab species. These trees with easily recognizable thick trunks
grow on the plains and in the foothills in small groups or as separate trees.
The beginning of the dry season is a time when the inhabitants of the Madagascar
savanna are still enjoying the abundance of food, but are already beginning
to prepare for harsher times. During this period, many species of trees completely
or partially shed their foliage for the sake of saving moisture. Therefore,
animals living in tree crowns behave more warily than in the rain season – they
can be easily noticed by any of the local feathered or ground-dwelling predators.
In the sparse forests of Madagascar, it is possible to spot creatures looking
strange at first sight. At the dawn, they leave shelters where they spent the
night and go out to feed. Looking at these animals, you might wonder if the
depopulated Earth was inhabited by fabulous creatures. These animals step over
the trees on their hind legs deftly and gracefully, like little humans. And
on their shoulders as if fur mantles are shuffled on. Are they forest fairies?
No, after all, these are animals – they have long mobile tails and elongated
muzzles. When one of these creatures yawns, long canines are clearly visible
in its mouth. From time to time, one or two adults watch the sky, trying to
notice in advance the large birds of prey that are their main enemies.
These creatures are representatives of one Neocene lemur species. Becoming smaller
in comparison with their ancestors, they managed to maintain a numerous population
and acquired in addition another interesting ability unique to primates. When
these lemurs come to the edge of the tree crown, their way is not barred: they
can easily get to a nearby tree. Having swayed while standing on a branch, these
animals make jumps one by one like huge shaggy and tailed frogs. In the air,
they spread their front paws to the sides, and what appeared to be a fur robe,
stretches into a patagium. With this device, animals easily cover the fifteen-meter
distance between neighboring trees. After this ability, this species got its
name – it is flying lemur.
Approaching the targeted place, these lemurs stretch their hind legs forward,
and land on the branches accurately, clutching against them with all four paws
in a death grip.
These lemurs spend all their time in the tree crones, only occasionally venturing
for a risky journey to the ground. In the trees, they find both food and shelter
for themselves. But with the beginning of the dry season, when the amount of
food in the tree crowns is reduced, they are forced to cross the land much more
frequently. At this time, the ability of making gliding jumps does not save
them from predators, and ground-dwelling predators are added to their list of
enemies alongside with the aerial ones.
Flying lemurs represent just one of the many species of lemurs that have inhabited
Madagascar since human disappearance. Virtually all Madagascar primates are
descendants of only a few species of lemurs that have successfully survived
the ecological crisis. In the due course of evolution, they have occupied a
wide variety of ecological niches – this process is named as “adaptive radiation”.
Even forms descended from one common ancestor can be completely different from
each other and have different lifestyles.
In the distance from the tree harboring a group of flying lemurs, a herd of
fairly large animals appears. From a distance, they look a lot like tall thin
people, but move in long jumps, like kangaroos. These are some of the largest
lemurs of Madagascar – giant kangaroo lemurs. Oddly enough, they are close relatives
of flying lemurs, sharing a common ancestral species. These animals have long
hind legs and thickened elastic tails that perform the function of balancers.
A group of kangaroo lemurs is rapidly approaching, and it can be seen that it
includes animals of different ages. Among the dozen adult animals, about half
a dozen adolescents is visible, and on one female’s back, a very small cub sits.
Kangaroo lemurs are omnivores; they consume a wide variety of plant foods. Due
to their growth, these primates easily reach leaves still left on the bushes
or low-growing trees. They usually eat the leaves, bending the branches down
with their front paws, like ground sloths, but if needed, kangaroo lemurs can
jump slightly to get hold of a particularly attractive leaf.
Flying lemurs watch from the branches of the baobab for their large relatives.
These small creatures do not like to be disturbed, and kangaroo lemurs, which
have not too many enemies in savanna, can behave very noisy. Trying to take
off all slightly edible leaves, they rock the tree strongly. Lemurs scream to
each other, when sharing the dropping leaves. When one of them breaks a branch,
the nerves of flying lemurs cannot stand it, and they jump to a nearby tree.
Having settled among its branches, the small lemurs watch from there their huge
relatives feeding.
Kangaroo lemurs, in their turn, do not care about the alarms of any small creatures,
and they continue feeding. Young animals that find it difficult to reach the
branches of the tree, sneakily steal fallen leaves that adult lemurs did not
notice. The smallest member of the pack, which is only two weeks old, settled
better than anyone else. It feeds mainly on mother’s milk, but already tastes
the food of adult animals. Although it is still small, food getting is easier
for it than for others lemurs of this pack: the cub sits on the female’s back
and simply reaches out its paw to drag a few leaves almost directly from its
mother’s mouth. For all mammal cubs, childhood is a time when many antics and
liberties must be forgiven. Tasting its mother’s food, it learns to recognize
trees with edible leaves. When it becomes an adult, it will be very useful for
its further life.
For now, the little kangaroo lemur cub spends most of its time on mom’s back,
holding on to strands of long wool on her shoulders. Sometimes it comes down
from her back to play with young or adult lemurs. When playing, young lemur
learns the establishing of social connections, explores the world around it
and meets the inhabitants of the savanna.
This little lemur is very curious – it is characteristic of all mammal cubs.
All the new things pick its interest, and the bright birds suddenly flying out
of the grass in a flock, attract its attention. And it wasn’t the only one who
paid attention to them: having heard the flapping of bird wings, many adult
lemurs stopped eating and began to look around. Instead of admiring the bright
plumage of birds, adult lemurs worry: birds that suddenly take off may be frightened
by some kind of predator. And really, noise can be heard in the grass, and kangaroo
lemurs become even more wary. They rise on their hind legs, peering into swaying
grass. Their muscles are tense, and the animals are ready to flee at any moment,
rushing with the speed of wind. Frightened kangaroo lemur cub climbed onto its
mother’s back and clung even tighter to her wool: if he falls down while fleeing
from a predator, the mother is unlikely to return and pick him up at this point.
A few days ago, its brother died this way, failed to hold on the female during
her jumps.
And now, among the grass, the arched bristly back of an animal that had become
the reason of the disturbance of lemurs appears. Paws stomp loudly on the ground
– it is so unlike the silent footsteps of a prowling predator… The fears of
kangaroo lemurs are groundless: from grass another inhabitant of the Madagascar
humid savanna – the spike-backed tenrec – comes out. This animal, looking rather
like a giant hedgehog, does not represent any danger to the large lemurs. But
it willingly consumes meat food; frog, lizard or chicks of small birds nesting
in the grass represent a good snack for it. Seeing that there is no threat,
the adult kangaroo lemurs calm down and begin tearing the leaves off the tree
again, occasionally bouncing up to get a fresher leaflet. And the cub sitting
on its mother’s back gets another important life lesson.
Spike-backed tenrecs are rather simple-minded and harmless inhabitants of the
savanna. Having approached the kangaroo lemurs, this beast sniffs the ground
near their feet with its long proboscis. Having not the best eyesight, this
huge afrotherian has developed a peculiar habit: having sensed the presence
of the pack of lemurs, this animal approaches them and picks up the rests of
their food. Sometimes, using its size and pointed teeth, it can even steal a
small lemur’s food. However, next to kangaroo lemurs it doesn’t seem to have
anything to gain: these primates eat mostly plant foods, and a large part of
their diet is made up of tree leaves. Spike-backed tenrec prefers roots and
tubers of plants, insects and other snacks that can be dug out of the ground.
Therefore, it only briefly lingers near kangaroo lemurs, and heads to where
the voices of the other inhabitants of the Madagascar savannas – crested lemurs
– are heard.
Crested lemurs are the counterparts of baboons and other monkeys in the savannas
of Madagascar. These beasts are smaller than kangaroo lemurs, and descend from
a completely different primate species. They live in a large united group with
a complex hierarchy. These lemurs are omnivores, and can get a wide variety
of food – from grass to insects and small vertebrates. Life in a pack gives
them one undoubted advantage: many eyes are constantly watching the surroundings,
and it is more difficult for a predator to get close to them to attack suddenly.
In addition, if necessary, lemurs can drive away the enemy themselves, taking
advantage of their numerical advantage.
The spike-backed tenrec knows that there is something to gain next to crested
lemurs. Being guided by their voices, it quickly finds a troop of crested lemurs.
It didn’t hide its intentions and some lemurs have long noticed it. But, since
these beasts are not predators, the lemurs were calm to its approach.
The tenrec is not particularly smart, but from its experience it has learned
well a simple rule: where lemurs feed, it is possible to find a lot of delicious
things. Therefore the spike-backed tenrec tries to get as close as possible
to the crested lemurs, and begins searching for food near them. When one young
lemur had dug up a particularly tempting plant root, the spike-backed tenrec
grunted softly and snatched it from the lemur’s hands and immediately swallowed
it. After robbing one lemur, it approaches the next one and watches closely
how the primate hunts a large beetle among the grass. But it is already not
a stupid youngster, but an adult female, and she does not appreciate such close
attention from the tenrec. She tries to drive the arrogant stranger away, displaying
her teeth. The tenrec perceives it as a threat, and grinds its teeth in response,
releasing in addition some sharply smelling musk on the grass. The frightened
female screams plaintively, and the lemurs appeared nearby rush to her aid.
Seeing that this spiky subject can spoil the feeding, the lemurs drive it away.
Having arranged in a crescent line, they strike at the tenrec, loudly screaming
and baring their teeth. Frightened by such a rebuff, the spiky beast retreats,
grunting disgruntledly and grinding its teeth back. But the lesson is learned:
now it does not behave so ungratefully and only picks up scraps after lemurs.
This spike-backed tenrec is not a lazy one living at the expense of other animals:
it just does not miss an opportunity that would benefit it. If necessary, it
knows how to get food by itself. Herein it is helped by a fine sense of smell
and powerful claws. In the Madagascar savanna insect larvae may be found – they
are nutritious and tasty as a food. Most often these are large grubs of scarabeid
beetles – cetonians and chafers. They dig in the ground, gnawing at the roots
of various plants. They are willingly eaten by both lemurs and tenrecs, but
for the lemur with its short nails getting such food is not easy. However, the
tenrec digs the ground with its claws much better than lemurs, and grubs appear
in its diet much more often.
Again, this time the sharp sense of smell did not fail the tenrec: from under
its claws several very large whitish grubs with reddish-brown heads came to
the light. They were feeding on the roots of grasses, protected from many insectivorous
animals, but not from tenrec. And now, being thrown to the ground surface, they
can only wriggle helplessly, trying to dig back in the ground. Having noticed
that the tenrec found such a delicacy, one of the lemurs decides, in the turn,
to steal some grubs from it. The primate approaches cautiously from the side
of the tenrec and waits. When the tenrec was about to eat one grub, from behind
its head the lemur’s paw extended, grabbed several grubs at once, and the sound
of hurry retreating steps is heard. Turning towards the offender, the spike-backed
tenrec only saw swaying grass stalks. Then, somewhere in the distance, he heard
loud screams of crested lemurs: it seems that the robber lemur himself managed
to eat not all stolen grubs.
Searching for food, crested lemurs do not forget that predators are found in
the savanna. Therefore, from time to time, each lemur rears on its hind legs,
monitoring the surroundings carefully. Crested lemurs have good stereoscopic
vision, but seem to have failed to notice two pairs of warily twitching ears
whose owners have hided in the grass and are keeping an eye on every movement
of the lemurs. Crested lemurs are in danger: they are watched by largest local
predators.
A long time ago, the largest predator of Madagascar was the fossa – a representative
of Eupleridae family that looked like a cross between a marten and a leopard.
But it did not survive anthropogenic pressure, and died out as a result of the
destruction of the environment. But its small ground-dwelling relative fanaloka
has turned out in much better position: it was smaller than the fossa, and therefore
managed to survive, and after extinction of humanity had turned into a terrifying
predator of the plains of western Madagascar. This descendant of fanaloka is
a ferocious gefana, a fleet-footed predator, somewhat similar to cheetah and
wolf. Gefanas do not form packs like wolves do, but do use a well-coordinated
driven hunt in pairs.
The spotted head of one gefana appears from the grass, looks around and hides
again. The wool of gefanas is covered with spots, and hunting animals are not
visible in the grass. The predator observes the troop of crested lemurs, searching
for an animal that has moved far from the main troop. The gefanas do not dare
to make a frontal attack to these lemurs: acting as a whole, a troop of crested
lemurs can give a worthy rebuff to the aggressor. Therefore, gefanas behave
cautiously: the male knows firsthand about the power of the collective defense
of lemurs. His shoulder carries a long scar that has somewhat broken the pattern
of spots – he had got this mark in his youth, when he had overestimated his
own strength when attacking.
The gefanas sneak cautiously towards the group of lemurs, freezing when any
of crested lemurs rears on its hind legs to monitor the surroundings. Gefanas
have a good chance to dine on fresh meat: an old crested lemur with a graying
head lags behind the troop, plucking the seed heads of cereals, and it seems
to be an easy prey to get it.
But skill of the hunter does not always determine success in hunting. Accidents
can happen during the hunt of predators suddenly: a bird takes off from under
the feet of the gefana female with a shrill call. The hunt is wrecked: all crested
lemurs become wary. As if on command, they rise on their hind legs, anxiously
raise the hair tufts on their heads, and begin looking around. Having heard
the bird’s call, the old lemur returned into the group of his congeners in some
leaps. The gefana female makes an unforgivable mistake: she peeks out of the
grass carelessly. One of the crested lemurs immediately notices the predator
and sounds the alarm, screaming in a loud voice. Panic spreads over the whole
troop: predators have been spotted, but the group is too dispersed to defend
itself collectively. Therefore, crested lemurs prefer to flee. They abandon
half-eaten plants, and run away into the bushes. Gefana does not hunt in the
bush: it is difficult for a long-legged predator to run in the thickets, and
this time crested lemurs saved themselves. However, the spike-backed tenrec
was left alone with the couple of predators. It is calm: its whole back is covered
with spikes, and gefanas will not have the most pleasant sensation if one of
them rushes toward it. Tenrec doesn’t run away even when gefanas approach it
almost at point-blank range. While the female sniffs the air and distract the
spike-backed tenrec with her movements, the male approaches it from the side,
hiding in the grass. Feeling threatened by these spotted animals, the tenrec
decides to scare them to force predators to keep their distance. The beast menacingly
opens its mouth and displays the predators its numerous pointed teeth, growling
loudly. But it seems that gefanas are not impressed. Maybe, earlier they just
have not tried to hunt such prey, and have little idea of the abilities of this
animal. One gefana even allows itself some familiarity in relation to the tenrec:
it rises on its hind legs and puts its front paws on tenrec’s back. Tenrec does
not forgive such things: it quickly turns around, and its sharp teeth click
just a few centimeters from the paws of the gefana. A quick response saves the
predator from severe injury: if the gefana had delayed for a split second, the
tenrec could snap and bite off its paw. Predators are no longer going to mess
up with this animal, and hide in the grass. And the spike-backed tenrec continues
digging in the ground, searching for snails and other small animals.
The kangaroo lemurs feed in the savanna, moving from one tree to another. Occasionally
they pluck the heads of cereals, and chew them along with the unripe seeds.
They are herbivores, and therefore they have to feed most of the day. But they
don’t need to track prey – their food grows around plentifully.
It is important for lemurs not to forget that there are other animals in the
savanna, for which they represent only a food. Therefore, during the feeding,
giant kangaroo lemurs rear from time to time and carefully monitor the surroundings.
However, they can’t see everything around, and they don’t notice that they are
being watched by two pairs of eyes.
Gefanas have long been watching this herd of lemurs, and are now sneaking up
on them in hopes of getting one for lunch. Circumstances favor them: among the
savanna groups of shrubs grow, and lemurs cannot notice predators hiding there.
In addition, lemurs are too busy with feeding, and therefore lose attention.
And one adult lemur, enthusiastically breaking off the leaves, moved away from
the herd at all. It seems, it is possible to kill him. Without collusion, gefanas
sneak up on him at close range, and then simultaneously attack, rushing out
from behind the bush. Kangaroo lemurs notice them too late, and rush away. Gefanas
drive the chosen lemur, not paying attention to the rest of the animals. They’re
trying to isolate it from the group, and drive away even farther. While the
male pursues the chosen kangaroo lemur, the female pushes the herd away from
it. Lemurs are even more frightened, and everyone of them is now trying to save
itself. The lemur being pursued by the gefana male will not be able to join
the main herd: the herd itself does not exist anymore, but there are just numerous
separate frightened lemurs.
Accidents can wreck a hunt, but can lead to success also. When the gefanas tried
to attack crested lemurs, the accident prevented them, but this time a blind
chance plays on the side of predators: the kangaroo lemur stumbles, hitting
a burrow in the ground with its foot at full speed. At this point, it tears
the tendon on its leg and falls, and gefanas immediately pounce on it. The male
grabs the throat and strangles the primate, and the female piles on top of the
lemur, preventing it from defending itself with its long rear paws. A few seconds
later, a lemur wheezing is heard in the grass. The hunt ended successfully.
After a successful hunt, the gefanas rest for some time: during the attack,
they spent a lot of energy. Nevertheless, in the savanna, it is dangerous to
leave prey uneaten for a long time, and the predators start eating, trying to
eat primarily the fleshy parts of the legs and the entrails rich in vitamins.
Gefanas eat quickly and voraciously, so they have time to eat quite a lot when
other meat lovers appear near their prey. One after another, baribal lemurs
emerge from the grass – heavy-built ground-dwelling primates, looking very much
like bears with small tails. One of the adult males has an impressive white
beard: he is the head of their clan. Males are the first to approach the carcass
of the kangaroo lemur, and a youngster and two females with cubs stay away for
now.
Alas, in the savannah, the quite human principle prevails: “One beats the bush,
and seven others catch the bird” – for every predator hardly getting its piece
of meat, there are a lot of lovers to profit at someone else’s expense. Baribal
lemurs are among such animals. They have long followed the hunt of gefanas,
trying not to let on. While the predators chased the lemur, they watched closely
from the bushes how their chase takes place. The death wheezing of the kangaroo
lemur serves as a signal for them to start feeding. However, these primates
know from experience that they need to be able to “keep a pause”. If they come
to the carcass too soon, gefanas can attack them, protecting their prey. And
no one wants to mess with these predators unnecessary, not even the head of
their clan. However, when gefanas satisfy their hunger at least partially, the
primates can try to eat the remains of the meat.
When the huge baribal lemurs approach the carcass, both gefanas bare their teeth,
and the wool stands on the back of their necks. They are well aware of what
encountering these lemurs can turn out to be, but still trying to show that
this prey belongs to them. Male takes some steps towards the baribal lemur,
deliberately raising his legs high when moving. He tries to display its force
to these primates, and even makes some rushes towards the baribal lemurs, snapping
its teeth. The female does not join him: it is not a true defense, but rather
a predator’s reminder of its own rights on prey. Gefanas have already managed
to eat a lot, so they do not try very hard to protect their prey. Moreover,
it was not a lonely lemur that came to them for lunch, but a whole clan of them.
Gefanas, in general, are not too dangerous for baribal lemurs: adult lemurs
are too strong and robust to be attacked with impunity. Only occasionally too
young lemurs of this species falls prey of the gefana. A family group of these
primates is organized and strong in a collective attack. In a fight the large
baribal lemur is also stronger than the gefana alone.
The bearded baribal lemur rushes at the gefana and strikes predator with its
paw. The gefana male bounced off in time, and the blow fell sidelong on his
back. Events seem to have taken a serious turnover, and predators immediately
retreat. They’ll not protect a half-eaten carcass by risking their own lives.
When gefanas have disappeared among the grass, the baribal lemurs begin feeding.
They tear off pieces of meat from the carcass of a kangaroo lemur, and eat them
with pleasure, crunching the gristle. Baribal lemurs are very fond of meat,
and try to eat everything that is possible on the carcass… Unless, of course,
they are not hindered by anybody else.
In the African savanna, the function of scavengers was performed by vultures
and marabous. In Madagascar their role was partly assumed by numidornises –
the representatives of gallinaceous birds. These birds – descendants of guinea
fowl, but reaching the size of Australian emu – roam the savanna, searching
for small animals, grass seeds, and... carrion. They are wary of getting too
close to gefanas eating meat, but wander somewhere far away, waiting for the
predators to be satiated and gone.
Due to their height, numidornises notice from afar baribal lemurs eating meat.
Of course, the lemurs are strong, and it was not difficult for them to drive
gefanas away. But numidornises live in a large flock – there are about a dozen
of them. They also have very strong beaks and a very assertive and nasty temper.
Chicken is chicken, even if it is as tall as an ostrich. Therefore, having set
a goal to get meat, numidornises immediately proceeded to take decisive action.
They push their way to the kangaroo lemur carcass and tear off pieces of meat
and tendons from it. When one of the young lemurs reached its paw to the meat,
one numidornis just pecked it with force, and the primate pulled its paw away.
Gradually, baribal lemurs begin to retreat: numidornises drive them away one
by one, taking advantage of their own numbers and wielding their pointed beaks.
Finally, even the head of the baribal lemur clan steps aside, and numidornises
peck at the meat and tear off ligaments and muscles from the bones, being undisturbed.
From time to time, they snatch tidbits of meat from each other’s beak, and then
the offended bird screams at the offender with its hoarse voice.
The beaks of numidornises work on the remains of the lemur very efficiently.
After their feeding, the lemurs can only lick the bones and gnaw the cartilage
that these birds were unable to eat. But, not fearing large baribal lemurs,
the numidornis birds, in return, may fall prey of gefana – they are quite stupid
and easily panic, so during their hunting gefanas just scare them to remove
the advantage of collective defense, and then catch a single bird.
In the savanna, night comes quickly. Baribal lemurs chose a place surrounded
by bushes, and sleep stretched out on the ground. They have nothing to fear
– an adult lemur of this species has few enemies. But the young ones still press
closer to their parents – in the dark any rustle can frighten them.
The branches of the bushes move, and from among them a small mammal appears,
similar to a squirrel with a large head and wide ears. It is a secretive and
cautious ant lemur, coming out of its shelter exclusively at night. At this
time, most predators sleep, and the insects it feeds on are not nimble enough
to defend either. Looking for insects, a small lemur rustles through fallen
leaves. But from time to time it freezes and listens. The main nocturnal enemies
of ant lemurs are owls and snakes that attack quietly, but with deadly accuracy.
Finding the galleries of termites under the bark of the bush, the ant lemur
opens them with the claws of the fused index and the middle finger. A few neat
movements are made, piece of the bark falls off, and from under it several termites
appeared. Before they managed to crawl away, the lemur licked them off, and
continued poking the insect tunnels. It interrupted only to lick off the termite
soldiers running out to defend the nest, and hardly noticed that he was being
watched.
A little baribal lemur woke up from the rustling in the bushes, and now with
curiosity watches the activity of the ant lemur. The ant lemur is not a predator,
and will not cause any harm to the little baribal lemur. It pays almost no attention
to the huge lemurs: at night they sleep and do not interfere with it. However,
in the daytime the ant lemur would prefer to hide from them, and even climb
a tree: a baribal lemur could easily crush this animal with its paw and eat
it.
When an ant lemur in searches of insects comes too close to the sleeping baribal
lemurs, the moonlight glitters in its large eyes. For a second the eyes of a
small lemur flash green light, and become very similar to eyes of an owl. The
baby baribal lemur is frightened by this sight and squeals loudly. Its mother
wakes up, raises herself a little and sniffs the air. Realizing that there is
no danger, she begins licking her cub’s face, calming it down. It climbs under
mom’s paw and falls asleep again. And the ant lemur that became the culprit
of the night turmoil, rushed into the bushes as soon as one of the adult baribal
lemurs moved a little bit.
The dry season continues. Many bodies of water in the savanna have long dried
up, and their inhabitants either migrated to the rivers, or buried themselves
into the mud at the bottom, or simply died. At the drying swamp, giant porcine
tenrecs feed. These huge insectivores, replacing wild boars in Madagascar, are
more moisture-loving than their spike-backed relative. In the wet season, they
feed on the rhizomes of reeds, and even dive to get crayfish and frogs. In the
dry season, they also stay closer to the drying swamps, digging up the plants
tubers from the mud. In this, they are helped by canines sticking out of their
mouths. Canines also serve as an excellent weapon against predators like gefana,
so the porcine tenrec has no enemies. Additionally, this huge insectivore is
protected by ribs expanded in width and forming an almost continuous shell under
the beast’s skin. But it is rather a device for protection against beasts of
its own kind: in the mating season, porcine tenrec males arrange quite cruel
fights among themselves, literally ramming each other by canines. But these
tenrecs have one enemy, against which their canines and armor are powerless:
these are swarms of stinging insects that live in abundance near swamps. But
it is possible also to get rid of them if you know how. The backs and sides
of porcine tenrecs are covered with a crust of mud: in this way these animals
protect themselves from insect stings.
Being so well protected from all sorts of misfortunes, porcine tenrecs pay little
attention to the anxieties and concerns of the other inhabitants of the savanna.
So when a whole herd of kangaroo lemurs at maximum speed rushes along the edge
of the swamp, tenrecs barely turn their heads in their direction. Their vital
interests do not coincide with the needs of lemurs, and these two species almost
do not compete, rarely encountering in nature. But when the voices of the gefanas
are heard from the grass, the tenrecs prepare to protect themselves. They come
together, and can give a serious rebuff to this predator. But in fact gefana
may threaten only a young porcine tenrec, or a single adult.
Defending themselves, the porcine tenrecs stand shoulder to shoulder, and begin
shaking their heads, having turned to the side, from where the voices of gefanas
are heard. Suddenly, right on them a young kangaroo lemur jumps out from reeds.
It is wounded: its side is torn, and the wool is stained with its blood. It
can be seen that this lemur has lost a lot of blood: it breathes heavily and
staggers. After a fast backward glance, he jumps over the porcine tenrecs and
hides in the thickets. And some seconds later, a couple of gefanas appears after
it. They clearly did not expect to meet such resistance here: the gefana male
stops, and the female followed him nearly knocks him off his feet. Having appeared
face to face with these predators, tenrecs grin and begin shaking their heads
from side to side. In doing so, they open their mouths, displaying their canines.
Gefanas are not going to get into a fight with them: they retreat some steps
back. As if inspired by it, the porcine tenrec male makes a threatening rush
in the direction of gefanas, displaying its force. Gefanas were engaged in chasing
the kangaroo lemur: the female’s muzzle is blood-stained – it was she who wounded
the beast. In order not to miss their prey, predators retreat and run around
the irritated porcine tenrecs. Some seconds later, they jump in the reeds, following
the kangaroo lemur.
The swamp has not completely dried up, and there are still several swampy areas
across it. Gefanas studied this area perfectly, and took advantage of it masterfully:
at one of these places, the kangaroo lemur hit into the trap, being bogged down
in mud. Gefanas are also thin-legged, and a careless step can end badly for
them. Therefore they walk around the lemur, checking the dirt carefully with
their paws. In their presence, the kangaroo lemur panics and begins to thrash,
trying to free itself. But it only plunges the beast deeper into the mud. Gefanas
come closer, and then, the male finishes the hunt, having rushed at the lemur’s
throat.
Having convinced that the lemur is dead, the gefana male pulls it out of the
swamp, supporting its paws against relatively dry areas of soil. It is a long
work: the lemur had bogged down deeply. The predator drags the dead animal to
a dry place, and there two gefanas eat their prey together. Anyone would hardly
interrupt their feast here.
Two more days passed. Drought continues, and porcine tenrecs are still not leaving
the swamp. In the reeds, they find the remains of the kangaroo lemur killed
by gefanas. Maggots already swarm in it, but it does not stop the omnivorous
tenrecs. On the contrary, animals eat the remains of meat right with the mass
of maggots. Their sharp teeth easily tear off and gnaw dried cartilage. In the
dry season, every kind of food is appreciated, and it is too expensive to be
picky or squeamish.
Yet the dry season cannot last forever. Sooner or later the rain season replaces
it: the direction of the humid winds blowing from the ocean changes. Rain clouds
bypass the mountain ranges, and rains finally pour on the savannas of Western
Madagascar. Changes happen quickly and suddenly. Even in the morning, the savanna
had been tormented by the heat, but already in the middle of the same day the
sky became cloudy, and by the evening it was raining heavily.
Residents of the savanna have different attitudes towards rain. It is hard to
say, whether they understand that rain means the imminent appearance of a variety
of food, but they clearly do not like water falling from the sky. Giant kangaroo
lemurs hide under trees and huddle together. They are not very pleased with
the rain: the wool of these beasts is soaked, and any gust of wind is keenly
felt. The animals pinched by cold shake, trying to become at least a little
bit drier. But this does not help, and those ones who are on the edge of the
herd, tremble from the cold and wetness. However, the smallest cub feels almost
no inconvenience: its mother and two more females carefully cover it from the
rain.
Baribal lemurs hide from the rain in the bushes and cuddle. Each lemur chooses
a place most comfortable for itself, not caring about others. When it began
to rain, the adult male unceremoniously pushed a young lemur out of the bush,
having realized that there was a very good place. Baribal lemur female covers
her cub with her body, exposing her back to the drops falling from the leaves.
But not all inhabitants of the savanna feel that way about the rain. Porcine
tenrecs generally love water, and during the rain, these stout animals are happy
to wallow in the wet grass. They have no one to fear: predators do not hunt
in such weather, and in addition, mosquitoes and flies very annoying to tenrecs
cannot fly during the rain.
The couple of gefanas, having managed to catch several small mammals before
the rain, lies in a spacious dry hole, having moved away from the entrance.
In the rain, they allow themselves to relax a little and take care of their
own hygiene. The male gently licks the head of the female, and she tries to
bite out a sharp thorn stuck between her fingers.
The rest of the day and the whole night pass under the sound of rain. Closer
to morning, it finally ends. And then flying lemurs, usually timid and secretive,
arrange a deafening “roll call”: they howl loudly and for a long time in a whole
band. When their yells finished, the voice of another clan of flying lemurs
living some miles away echoed them from afar. This call means that the time
of danger and fear is over, the time of abundance and tranquility is coming.
The rain fell for several days with short breaks. The savanna begins to transform
literally before our eyes. Where there was dry cracked ground, a small lake
stretched now. At its bottom, in a thick layer of dried silt, tubers and rhizomes
of aquatic plants were waiting for their time; they immediately began their
rapid growth. Green lacy aponogeton leaves develop one by one, and next to it
a water lily spreads its round olive green leaves covered with brown strokes.
Some more days later, the surface of the lake adorns with the pink and white
flowers of the water lilies, and aponogetons shoot white and lilac-pink spikelets
of small flowers above the water. Frogs and water beetles actively settle in
the water, and multi-colored shiny dragonflies fly over the leaves of water
lilies. Although you’d think this lake had always been here, in fact about two
weeks ago there was dry ground in its place, covered with a network of deep
cracks. Frogs spent the dry season in burrows and wet silt. Having recovered
and fattened up after the dry season, they arrange “concerts” from evening to
morning, drowning out even bird voices with their croaking. Perhaps they know
that water means life much better, than other inhabitants of the savanna.
In the rain season, the rapid growth of grass begins. Remains of dry stems hide
among the young sappy shoots, and bulbs and tubers as if explode with wide leaves
and bright flowers. In some days, the savanna scorched by the sun turns into
a flowering meadow. On trees buds burst and young leaves unfold quickly. Flying
lemurs feel safe: now they are almost invisible among the branches, and there
is a lot of food around. They can rest much longer, and around the noon, the
animals arrange a “nap time” for themselves. But young lemurs do not want to
obey the rhythm of adult life: they play in the foliage, making long leaps.
And the bravest ones of them even dare to jump on nearby trees alone.
In the rainy season, the savannah gifts its residents with a rare delicacy –
trees begin to blossom, and birds and mammals have an opportunity to taste nectar.
One night, the large white flowers of local baobabs open. Like all night-blossoming
flowers, they exude a delicate and attractive aroma, inviting pollinators to
them. Around the flowers hanging down from the branches, small bats and large
moths hover. Flying lemurs are also among those invited to the night feast.
Getting close to the flowers of baobabs, they scare away bats and moths flying
around. Sticking its muzzle into the flower, a flying lemur licks off the nectar.
When it turns away from the flower, its whole muzzle is powdered with the pollen,
so it sneezes and wipes its nose. But it is a fee for the delicacy: small mammals
are the main pollinators of baobabs. Primates are in a hurry to enjoy the food
– each flower opens for just one night. In the morning, the feast will end:
the flowers will fall, but they will be replaced by new ones. A week later,
the blossoming of baobabs will end, but other trees – acacias – will begin blossom.
During the rainy season, water is far from being scarce, and animals become
more picky. If in the drought, the giant kangaroo lemurs could quench their
thirst even with a muddy slurry remaining in place of the pond, then in the
rainy season they give a wide berth to the puddles with disgust, preferring
to drink fresh water from the rivers. A watering hole is a place where predators
set up ambushes especially often. Therefore, kangaroo lemurs, going to drink,
come to the river carefully. While some of them drink water, others monitor
the surroundings. And it seems their fears were not in vain: a soft chesty growl
is heard by the lemurs. Without waiting to see the events unfold, the kangaroo
lemurs flee. Out of the bushes the couple of gefanas comes, and they head for
the water. Their muzzles are stained with blood and feathers stuck to the wool:
several hours earlier, the predators had successfully hunted a young Numidornis
and had eaten to repletion without sharing the prey with anyone else. The predators
can rest after hunting: they aren’t afraid of anybody else, but they inspire
fear in most of the local inhabitants. Gefanas stretch on the sand, and the
male begins to play with the female, lightly biting the tip of her tail. Gefana
family persists for a long time, and it is important for them to maintain relationships
by hunting and playing together.
But the rest of the predators does not last for very long. A grumbling and noise
make the gefanas spring on their feet. The family group of porcine tenrecs are
the disturbers of their tranquility. The beasts came to the river not only to
drink some water. Porcine tenrecs spend a lot of time near the reservoirs, and
now they want to eat fresh greenery of aquatic plants. Three large tenrecs at
once begin displaying their huge canines to gefanas, shaking their heads menacingly.
The gefanas are in the minority and not going to hunt. Anyway, these tenrecs
are stronger than the gefanas, especially being in the numerical majority. Gritting
their teeth, the gefanas retreat and leave, being stared after by the large-toothed
adult tenrecs.
When predators hide in the bushes, porcine tenrecs sniff the air for a long
time, lifting up their movable proboscises. Finally convinced that predators
are far away, a large female enters the water the first, and other beasts follow
her. They dive underwater and search for sprouted tubers of water lilies and
aponogetons at the bottom. Having found a tasty plant, the beast hooks it up
with its canines, pulls it out of the bottom and eats the tender young foliage.
Reed rhizomes are also eaten by tenrecs, along with the snails stuck to them.
Having satiated, porcine tenrecs can relax: they just nap in the water, swaying
in the waves.
The savanna changes its general coloration: from a yellowish-gray sun-burned
area it becomes vivid green, and in some places the greenery is shaded by white,
yellow or red flowers of various bulbous plants. Replacing each other, they
will bloom throughout the wet season, and the last flowers will wither when
the rains become rare, and the grass begins turning yellow.
The tops of the grasses sway: clumsily waddling, a spike-backed tenrec wanders
through the grass. It had not noticed much around itself with its faint eyes
before, and even less now: it is compelled to rely only on a keen sense of smell.
On the contrary, giant kangaroo lemurs enjoy an abundance of food. They can
even regale themselves with sappy and sweetish peduncles of bulbous plants,
or dig up and eat their bulbs at once. Away from the lemurs, numidornises with
chicks roam the savanna. Brood had hatched recently and the parents teach the
chicks to search for food. They peck insects, at the same time showing their
chicks what they can eat, and what is better to stay away from. The chicks might
get lost in the tall grass, but the parents are looking to them and calling
the back.
Savannah returns to a time of abundance. However, this time will last as long
as rains will fall here. But to the east of this place, beyond the mountains,
there is a different world – there are no grasslands, but tall evergreen trees.
This world receives all the rain from the ocean, and here the most diverse life
is bubbling all year round.
Bestiary |
Spike-backed
tenrec (Dorsospinogale maximus)
Order: Afrosoricida (Afrosoricida)
Family: Tenrecs (Tenrecidae)
Habitat: Madagascar, sparse forests and shrub savannas.
Picture by Alexander Smyslov
On the islands, the phenomenon of adaptive radiation – closely
related species occupying all available ecological niches descend from the non-numerous
ancestral forms – is expressed much brighter than on the continents. This is
what happened in Madagascar: a variety of species have emerged among the local
tenrecs, similar to hedgehogs, shrews, opossums and other small mammals. But
after the mass extinction, descendants of the survived species had gone through
even greater flourishing, competing successfully to the other inhabitants of
the island.
One of the most notable inhabitants of Madagascar savannas is a huge (although
not the largest) member of the tenrec family, the spike-backed tenrec. It is
a direct descendant of the greater hedgehog tenrec (Setifer setosus), which
lived in Madagascar during the Holocene epoch; it was a mammal looked like a
large hedgehog with a long muzzle. Spike-backed tenrec is a heavy-built mammal,
weighing up to 40 kg. When such a giant wanders among the grasses, from a distance
it resembles some kind of giant hedgehog.
The limbs of the spike-backed tenrec are plantigrade and relatively short. On
the front paws, sharp thick claws adapted for digging grow. Hind legs are approximately
equal to the front ones in length, and the back of the animal is arched upwards.
This species is tailless. The body is covered with short gray wool. On the belly,
the wool color is lighter, and on the chest and the throat there is often a
white spot.
It is quite clear that with a stout physique it is difficult to be a good runner.
However, the spike-backed tenrec doesn’t need it: it has an excellent protective
adaptation. The back of this animal is covered with relatively thick skin, while
on the hips, lower back and the sacrum, among the wool numerous yellowish-white
spikes grow, that protect it from an attack from behind. The beast can raise
and lower the spikes at will depending on the situation.
Passive protection against enemies sometimes isn’t enough. Spike-backed tenrecs,
despite their massive constitution, have other defensive tactics, they are quick
and quite aggressive. Taken by surprise, they can defend themselves not only
with the help of spikes: with sharp teeth, this beast inflicts deep bites on
the aggressor. And thanks to the short muscular legs, the spike-backed tenrec
can make short sharp rushes and turns, attacking the enemy suddenly.
Spike-backed tenrecs are solitary animals. To communicate with congeners, they
use mostly scents, without coming into direct contact. These beasts have large
musk glands on the hips. With their secretions, they mark the territory. Each
gland has a sac for musk, surrounded by ring muscles. Contracting these muscles,
the mammal splashes musk out for a short distance, spraying it in tall stems
of grasses and shrubs, serving as natural landmarks of its territory.
The head of the spike-backed tenrec is elongated; the snout is mobile and flexible,
elongated into proboscis. The front teeth are sharp (canines are longer than
the incisors), the molars are tuberculate. This tenrec is omnivorous, feeding
mainly on plant matter and insects. For foraging, it uses the claws of its forepaws.
Having smelled insects or edible roots, the animal diligently digs the soil.
Sometimes after its feeding, several square meters of soil are completely torn
up, and vegetation appears destroyed. In addition, the spike-backed tenrec willingly
eats carrion, even strongly decomposed. Thus, in the ecosystems of Madagascar,
they appear to be an ecological analog of armadillos.
The sense of smell in this beast is developed excellently – the inner surface
of the nasal passages is creased. Vision is almost useless among the dense grass,
so the eyes of spike-backed tenrec are small. Hearing is good; ears are rounded
and small.
During the mating season (lasting over several months), the male actively courts
the chosen female: he runs after her, blocks her way, splashes on grass the
secretions of his musk glands. He is larger than the female, and can behave
aggressively sometimes, if the female does not accept his courtship. If the
female is ready to accept it, she displays her submission by lowering the spikes.
After mating, the male leaves the female and looks for a new one, without taking
part in the care of the offspring. Females give birth to cubs once a year.
Pregnancy lasts up to 2 months. There are up to 5 cubs in the litter. They are
born helpless, naked and with eyes closed. The female hides them in a shelter
– among thorny shrubs. She carefully hides the location of the nest, abundantly
marking the territory on a great distance from it to distract possible predators.
Cubs develop quite quickly: at the age of one week they are covered with hair;
in two weeks, their eyes and ears open, and month-old cubs can walk. At the
age of six weeks, they leave the nest and go wandering with their mother. Spikes
in young animals begin to grow at the age of about two months. Until that time,
the mother actively protects them, attacking even the congeners.
One-year-old spike-backed tenrec weighs about 20-25 kg, and at the age of two
years it becomes completely adult. Life expectancy in this species reaches 25-30
years.
In shrub thickets and sparse forests, as well as in the mountain forests of
Madagascar, its close relative lives: the armor-backed
tenrec (Armogale loricatus). It is smaller (its weight is only about
15 kg); back and lower back are protected by thick keratinized skin, forming
a kind of armour. The spikes on it are reduced and look like bristles among
the thin and short wool. It is tailless. The front of the body, head and legs
are covered with yellowish-brown wool. The snout is more mobile and longer than
that of the spike-backed tenrec. On the forepaws there are large claws adapted
for digging. The largest claws grow on the 2nd and 3rd fingers. Unlike its larger
relative, this species builds permanent shelters – burrows in the bush or under
the roots of large trees. There are up to 5 cubs in the litter. The female bears
offspring twice a year.
Giant
porcine tenrec (Scrofogale titan)
Order: Afrosoricida (Afrosoricida)
Family: Tenrecs (Tenrecidae)
Habitat: Madagascar, savannas and marshlands.
Picture by Timothy Morris
Initial image by Alexey Tatarinov |
The order of insectivores is represented for the most part
by small and very small animals. So, shrews belong to it - the smallest beasts
on Earth. But in the Neocene among this kingdom of dwarfs appeared large Madagascar
tenrecs, and among them - the porcine tenrec, a real giant, in size comparable even
to relatively large representatives of other orders of mammals. The porcine tenrec
is a fairly large animal by mammalian standards: it weighs up to 60 kg with
a body length of up to 1.2 meters. It's a mammal of massive build: it has short
five-toed legs, barrel-shaped body without a tail, and a large head. The animal
is not brightly colored: the hair on the body is dark brown, along the back
passes 3 – 5 intermittent parallel strips of white wool. Cubs have light stripes
wider, and they appear lighter than adults.
Small tenrec species often defended themselves against enemies with needles
that grew in the wool. Thin needles were possessed by the ancestor of this beast
- the common tenrec (Tenrec ecaudatus). The porcine tenrec retains individual needles
among the stiff bristles of wool on the back. But to protect themselves from
enemies, they developed another device. – the ribs greatly expanded and formed
a kind of "armor" on the chest.
The head of the porcine tenrec is peculiar. The eyes of the animal are very small
- these tenrecs don't see very well. The ears are also small, only slightly
protruding. The snout is elongated into a short movable proboscis with a wide
"patch", which determined the name of the mammal. The proboscis is
devoid of hair and covered with a thick dark skin. With its help, the animal
can dig up food from the soil.
The external resemblance to pigs is enhanced by the teeth of this tenrec. Canines
of the upper jaw have large, strong bases, sticking forward and to the sides,
protruding from the mouth. If necessary, they are used for defense, but their
main function – digging the ground. The basis of the diet of the porcine tenrec
is the roots and bulbs of plants, as well as insect larvae, which are found
in abundance in the soil. This species swims well and often feeds in shallow
waters, plowing out the roots of reeds and marsh grasses with their fangs. This
tenrec loves delicate greens and sweetish tubers of aquatic aponogeton plants,
very diverse in Madagascar. During the dry season, porcine tenrecs feed in dried-up
riverbeds, where they search for tasty tubers, digging up the silt that has
dried into a dense crust.
The porcine tenrec does not hibernate, unlike its ancestor.
These animals are more accommodating to each other than their relatives. They
often form small groups. However, these mammals are more mobile and aggressive
towards a predator. Defensively, they try to strike with fangs or bite. Attacking
porcine tenrecs makes jerky loud noises, similar to a dog barking.
The mating season for these animals begins around the middle of the dry season,
and after two months, at the beginning of the wet season, the female gives birth
to only 2 - 3 large cubs. For the den, she usually chooses a place on an island
inside a swamp. Cubs are born blind and deaf, but covered with short hair. They
open their eyes on the 10th day of life, and after another 3 to 4 weeks they
are able to follow the mother. They will be able to reproduce at the age of
three, and the luckiest of them will be able to live up to 25 - 30 years.
Gefana
(Hyaenosoma velocipes)
Order: Carnivores (Carnivora)
Family: Madagascar “Mongoose” (Eupleridae)
Habitat: Madagascar, savannas and sparse forests with small areas of thick forest.
The largest predator of Madagascar during the Holocene epoch was fossa (Cryptoprocta
ferox), a cat-like representative of the Eupleridae family. In times of climatic
change at the boundary of Holocene and Neocene, this species became extinct:
the fossa was a forest-dwelling animal, and the area of forests has greatly
decreased, a significant part of their inhabitants had become extinct. But another
predator of Madagascar was much luckier: the land animal fanaloka from the same
Eupleridae family (oddly enough, but in Latin this species is called Fossa fossa,
although it is only distantly related to fossa) managed to survive. This comparatively
small predator of the rainforest, looking like a fox with a spotted skin, adapted
successfully to life among grasses and shrubs. Descendant of fanaloka, the large
predator gefana, turned into a fleet-footed doglike animal.
Gefana greatly increased in size compared to its ancestor. This mammal has about
1 meter at the shoulders, a body length up to 120 cm and tail about 1 meter
long; the weight of an adult animal may reach 70 kg. Wool is short and thick,
straw-colored with scattered longitudinal rows of brown spots. Spots are especially
noticeable in young animals, becoming paler with age, to the point of disappearing
completely in old animals. On the head, the spots are relatively small and located
mainly on the forehead. The pattern of the spots varies greatly individually,
and may help different animals to recognize each other.
On the tail, the spots remain contrasting till the whole animal’s life and merge
in adult animals into wide cross rings. A striped tail raised upwards serves
to maintain visual contact while living in the tall grass of the savanna. In
addition, the long thin tail serves as a balancer in sharp turns, when gefana
chases its prey.
In the ecosystems of Madagascar, gefana occupies an ecological niche of cheetahs
and canids, and partly of hyenas. The legs of this beast are long; the claws
are short and pointed. Shoulders are slightly higher than rump; because of it
the back of gefana is sloping. At short distances, the predator can reach speed
of up to 80 km per hour, but it is able to run so fast only for some minutes,
after which it rests for a long time.
Gefana feeds on large prey – ground-dwelling lemurs and tenrecs. It has a large
head with long jaws. The muzzle has prominent cheekbones – its jaw muscles are
very strong. The canines are relatively short and pointed, with strong roots.
Due to its strong jaws, the animal easily gnaws on cartilage and, if necessary,
eats even soft heads of bones.
Gefanas hunt during the day, so the main role in the search for prey is played
by their vision. The eyes of this animal are large and dark brown with round
pupils. Visual fields of the eyes largely overlap. In the search for prey, the
predator is also helped by an acute sense of smell – the nasal passages of gefana
are covered with numerous plicae that increase the olfactory surface. The ears
are short and rounded.
In the way it hunts, gefana resembles canids: it pursues prey for a long time.
First of all, animals (they hunt in breeding couples) pounce on the intended
prey and wound it. Usually, during the first attack, predators do not kill their
prey, giving it a chance to run away. After the attack, gefana couple chases
the wounded prey for a long time, exhausting it to such an extent that the attacked
animal may drop dead from fatigue. However, gefana catches and eats small prey
on the spot.
Usually, gefanas eat as much meat as they can, and do not return to the prey
afterward. During periods of lack of food, these predators are not so picky,
and can eat even from the partly decomposed carcass. If large prey is unavailable
on some causes, gefanas eat small animals – rodents, small birds and reptiles.
In a drought, they visit drying ponds and rivers for fish and other aquatic
inhabitants. Often, gefanas intentionally drive large animals into the bog and
attack them some days later when the soil around the bogged down prey will dry
out a bit and support the weight of the predator.
A small part of the diet of gefanas is still made up of plants: this predator
loves to feast on the fruits of various trees, giving preference to strong-smelling
and sugary ones. Sometimes gefanas wallow on rotten fruit remains to mask their
own smell before hunting.
Gefana lives in pairs that last a lifetime. A couple hunts together and both
animals mark their territory with musky secretions, using for this purpose single
trees and bushes, as well as termite mounds. Declaring their rights to the territory,
gefanas “sing” a duet at dusk and dawn. Their voices sound like the cat’s meow,
but more deep and loud.
Gefanas bear offspring once a year. There is only one cub in the litter; at
first, only the female takes care for it, and then both parents do it in turns.
The den is a very large burrow (up to half a meter in diameter) in shrubs, or
any naturally formed cave. The cub is born with closed eyes and ears, but grows
and develops rapidly. At the age of one month, it leaves the shelter and leads
a nomadic life with its parents. Gefana becomes an adult at the age of two years.
Ant
lemur (Myrmelemur pumilis)
Order: Primates (Primates)
Family: Dwarf lemurs (Cheirogaleidae)
Habitat: Madagascar, light forests and shrubby savannas.
Pictures by Alexander Smyslov
Oddly enough, the phenomenon of mass extinction has some benefits
for some representatives of fauna and flora. When many living beings go extinct,
survived species have the opportunity to occupy the exempted ecological niches
and start active speciation. After the extinction that happened at the boundary
of Holocene and Neocene, among the animals of Madagascar this process has begun
actively, and the forests of the island had filled with life again.
At dusk and dawn, among the bushes in the Madagascar light forests one of the
representatives of the new fauna of this island can be seen: a small mammal
climbs among the branches, occasionally tearing off pieces of bark and trawling
through the foliage in search of insects. It is especially interested in the
nests of social insects, termites or ants. Having found such a nest, the animal
stops its fussy movements and begins feeding slowly: standing on its hind legs,
it digs up the dwelling of insects, and quickly licks off its inhabitants.
This animal, a direct descendant of representatives of the indigenous fauna
of Madagascar, is called ant lemur. It is a small primate species: body length
is up to 15 cm, and tail is up to 20 cm long.
Ant lemur is adapted to feeding on insects. Its tongue is slightly elongated
and covered with sticky saliva secreted from the large salivary glands. On the
index and the middle fingers of this primate the main tools for the destruction
of insect nests grow: these are large claws. The fingers themselves are united
by a common skin cover, and look like one thick finger with a double claw. The
bones of these fingers are thick – due to such fingers, even the hard nests
of termites are ravaged by ant lemur. If its fingers cannot cope with the nest
of insects, its teeth are used: the front incisors on the upper and lower jaws
are very large, slightly similar to the incisors of rodents.
The ant lemur leads a predominantly arboreal lifestyle, although it is often
found on the ground. Because of its very large claws, the ant lemur moves on
the ground on two legs, keeping its front paws suspended. The forepaws of this
lemur have kept the characteristic grasping ability of the primates. The thumb
is opposable to fingers IV and V, forming a strong grip. Fingers II and III
during climbing are raised, and do not interfere with grasping the branches.
Hands are covered with dark wool. The hind legs of this mammal are not so specialized,
but the 1st digit is opposable to the others.
The
ant lemur’s head is rounded, with a flattened face and a short snout. Canines
are very short; premolars have sharp cutting edges. The face is covered with
dense short black fur. The eyes are large; the iris is brown. Ears are short.
The male’s wool is bright red, while the female is straw-yellow. Tail is long;
it is used as a balancer during the tree-climbing. At the tip of the tail, a
bright black and white switch grows. The sign of threat in ant lemurs is a trembling
tail raised up.
Once a year, the female gives birth to only one cub. It is covered with dark
wool, and gets the coloration of adult animals only at the onset of maturity.
For the first two months of life, it sits on the mother’s back, gradually learning
to climb trees and search for food. With its large fingers, it holds on to the
parent’s hair. When the claws begin to grow strongly and cause its mother pain,
she is less and less likely to allow it travelling on her back. Up to five months,
the cub stays near the mother, then leaves her and leads a lonely life.
Social insects represent a specific food resource: their nests are located relatively
sparsely. That is why lemurs live alone; only the female and the cub stay together.
Ant lemur marks its territory with urine, regularly renewing its scent marks.
This small animal carefully guards the territory from relatives. If two ant
lemurs meet at the border between their possessions, they begin claiming their
rights to the territory: with their tails pulled up, they display black-and-white
switches, screeching and grinding teeth at the same time. Only a female ready
for mating allows the male into her territory, but chases him away immediately
after mating.
This lemur spends day and night hours in shelters – usually in hollows of tree
trunks. The most active feeding time is at dawn, when the nocturnal predators
are already going to sleep, and diurnal ones have not yet woken up. In the evening,
the lemur also goes out to feed, but then it is more cautious.
Like at all small animals, the lifespan of ant lemurs is short: no more than
10 years. Their natural enemies are snakes and birds of prey. Young animals
occasionally die, having failed to recognize the dangerous species of ants:
they are stung to death.
Giant
kangaroo lemur (Saltopithecus cynocephalus)
Order: Primates (Primates)
Family: Indriids (Indriidae)
Habitat: Madagascar, sparsely forested areas and sparse mountain forests of
the western part of the island.
Picture by Timothy Morris
Madagascar is one of the largest islands on the Earth. In
the Holocene, its unique fauna has suffered considerable damage due to human
activities. Climate change at the border of the Holocene and Neocene has caused
a mass extinction of a large number of species of native animals associated
in their lives with forests. The species that can exist in conditions of rare
forests and open spaces survived more or less better. They became the ancestors
of the new fauna of Madagascar.
In the Neocene, this island regained forest cover, but in the southern part
of the island vast areas of sparse forests remained. Here the trees do not form
a continuous canopy, and the ground is overgrown with grasses. Among the trees
some of the largest representatives of Neocene Madagascar fauna search for food.
These are the descendants of sifaka lemurs (Propithecus verreauxii), inhabitants
of the dry forests of Madagascar. Having adapted to life in open spaces, they
turned into strange and bizarre creatures – giant kangaroo lemurs.
The height of an adult animal is up to 2 meters (males are larger than females),
but their constitution is lighter and more graceful compared to great apes.
The head of this lemur is large, vaguely similar to a dog’s head – the muzzle
is elongated. The jaws are relatively wide; molars are flattened: a significant
part of the diet of this species consists of fibrous plant food, and giant kangaroo
lemurs chew it the most of the time. The ears are rounded, slightly protruding,
located on the sides of the head. The eyes are large; vision is binocular. The
face of giant kangaroo lemur is hairless, the skin on it is dark. On the upper
jaw near the nose, there are thin long vibrissae. Face is bordered by a zone
of white hair; in old males on the cheeks peculiar “muttonchops” appear.
The body is covered with relatively thin hair. Back is beige with black longitudinal
stripe; belly is white. On the shoulders of females, long wool forms a kind
of “epaulettes” – cubs hold on it during the movement of the parents. For this
species, the body positioning is characteristic: at rest, the body is held almost
vertically, the animal supports on its tail. The forepaws are free and the animal
can use them when searching for food.
Giant kangaroo lemur moves on the ground jumping on its hind legs; if necessary,
it can make jumps up to 4 meters long. Hind legs are adapted for this type of
movement: the foot is narrow; its toes are fused along almost the entire length.
The animal moves, leaning on the tips of four toes, big toe does not touch the
ground. During jumps, the body is tilted forward, the upper arms are pressed
to the sides, and forearms and hands are free.
Young kangaroo lemurs are more mobile than adults: they can easily climb trees
like their ancestors. They can even jump from one tree to another.
The tail serves this animal as a balancer and counterweight. It is long, thick
at the base: fat is deposited in it. At the tip of the tail, a switch of white
hair grows. These switches are used to identify relatives: from time to time
lemurs raise their tails up, signaling to relatives about their location.
Giant kangaroo lemurs feed mainly on vegetative food: leaves of trees and shrubs,
fruits and seeds of graminoids. On occasion, these primates may eat food of
animal origin – insects and small vertebrates. When searching and getting food,
this lemur actively uses its forepaws: it plucks and brings to the mouth heads
of graminoids and fruits, digs up leaf litter in search of insects. Having raised
on their hind legs, giant kangaroo lemurs can rip leaves off trees.
Giant kangaroo lemurs live in herds of 15 to 20 animals. The herd includes several
families of roughly equal rank, headed by males.
Once a year, the female gives birth to two cubs. They are born with eyes opened
and covered with wool. Wool of cubs is darker than that of adults: there is
only a small white spot on the chest. Immediately after birth, the cubs climb
on the female’s chest, holding on to her wool. During her jumps, the female
holds them with her front paws. Grown up cubs move to the mother’s back.
The cubs are carefully cared for by all females of the family group, and sometimes
by females from neighboring groups. With such care, even an orphaned cub has
a chance to survive, if it lost its mother when it no longer needed milk. Females
allow cubs to taste the food they eat.
At two months of age, young lemurs begin playing with each other and spend a
lot of time on the ground. They need the care of adults up to eight months of
age, after which they become completely independent. Males most often move to
other herds, forming families with young females. Young females remain in parental
herds, but stay away from “married” females. The first cubs appear at them,
when they are three years old, after which these females become “insiders”.
The life expectancy of this lemur reaches 40-45 years.
Flying
lemur (Microsifaka volans)
Order: Primates (Primates)
Family: Indriids (Indriidae)
Habitat: Madagascar, sparse plain forests and sparse montane forests.
Perhaps Medieval legends about people with dog heads were born after how European
explorers met the amazing animal world of Madagascar. Some of the lemurs that
lived in the Holocene on this island resembled shaggy humans with long beast
muzzles.
At the border between Holocene and Neocene, natural disasters significantly
reduced the number of lemurs, and a large number of their species became extinct
irretrievably. Nevertheless, some species survived the hard times and evolved
into completely new forms. One of them is a lemur adapted to make long gliding
jumps and having a gliding membrane of a bizarre anatomy.
Flying lemur is a relatively small primate species: the weight of an adult animal
is up to 5 kg. Hind legs are grasping, with a well-developed big toe. While
moving in the forest canopy, this primate uses them mainly. It is one of the
few Neocene mammal species that can move on its hind legs: lemur just walks
on the tree branches. But, unlike a human who just stepped foot on the ground
or other support, the lemur additionally grabs a branch with grasping toes of
its hind feet with each step. The muscles on the hind legs are well developed.
Due to them, the animal can make long jumps from one tree to another.
The forepaws are grasping and tenacious. The thumb is well developed and is
opposable to the fingers. While moving, this lemur grabs branches with its paws
to keep balance. Also with its front paws, the flying lemur gouges the bark
and rotting wood in search of insects. However, insects represent only a small
part of the diet of this animal. Flying lemur is omnivorous, and equally willingly
eats food of both plant and animal origin. It ravages bird nests, catches frogs
and lizards and eats juicy tree fruits, including those that may be inedible
for other lemurs. Occasionally, flying lemurs search for food on the ground.
But at this time, they are especially cautious, and do not go far from trees.
At the slightest danger they seek salvation in a tree, and sometimes make jumps
up to 5 meters high – from the ground directly to the lower branches of the
tree.
Like some marsupials and rodents, this primate has adapted to make long gliding
jumps. On its forelimbs a device for it appeared: the distal end of the humerus
continues from the elbow joint as a cartilage rod that is about half of the
forearm in length. Between this rod, the upper arm, side and base of the animal’s
thigh the patagium stretches. Of course it is not as extensive as that of the
flying squirrels, “true” flying lemurs and sugar gliders of the Holocene era,
but all the same significantly prolongs the gliding of the mammal in the air.
Due to it, the animal flies up to 20 meters, and up to 30 meters when jumping
from the tree to the ground. A significant advantage of the structure of such
a patagium is that the hands of the animal are relatively free, although the
leading edge of the patagium is not as hard as in other mammalian gliders, in
which the membrane stretches to the entire limb.
The patagium has another important function: it is a heat radiator. The lower
surface of patagia is almost hairless, and on the upper one wool is thinner
than on the torso. The tissues of the patagium are penetrated with blood vessels,
which dilate when the mammal is overheated. Blood rushes to the patagia and
radiates an excessive heat. Due to this property of the patagium, the flying
lemur can feed in the sun and does not suffer from overheating. If the lemur
is hot, it lifts the upper arms slightly and makes several flapping movements
by them, as if by wings.
The wool of lemurs of both sexes is white. There is a longitudinal dark band
on the back.
The voice is loud and sounds like the dog’s howl. In the morning, lemurs arrange
a loud “roll call”, which sometimes lasts up to half an hour. This usually happens
during the wet season. In drought, when the leaves partially fall off from the
trees, lemurs become more cautious.
Flying lemurs live in groups of up to a dozen animals.
Reproduction of this species takes place almost all year round, and in each
group 2 to 3 cubs of various ages are always present. Young animals differ from
adult animals in completely white hair. A characteristic stripe appears on the
back of young flying lemurs only at the age of 7-8 months, when they become
independent.
In the rainforests of Eastern Madagascar a related species lives: forest
flying lemur (Microsifaca acrobates). This species differs in larger
size and dark coloration: the upper side of the body is black, the bottom is
white. On its head, male has bright red tuft; female has just a patch of short
gray hair instead of it. Living in the crowns of emergent trees, it makes long
jumps in their crowns.
Crested
lemur (Papiolemur cristatus)
Order: Primates (Primates)
Family: Lemurs (Lemuridae)
Habitat: savannas and sparse forests of southern Madagascar, sparse mountain
forests.
Almost all prosimians are forest-dwellers. Therefore, in the period of ecological
crisis at the turn of the Holocene to Neocene, when the area of forests decreased,
many of their species became extinct. But among the surviving lemurs species
that can live almost exclusively on the ground had evolved.
In the seasonally dry areas of western Madagascar, troops of these animals roam
in sparse forests. Usually they may not be seen immediately among the tall grass,
but from time to time, these beasts raise their shoulders and heads above the
grass, and some of them stand on their hind legs, and look round. Then the feature
becomes noticeable, for which these primates were named crested lemurs – on
the crown of adult animal a long white wool looking like fluffy crest noticeable
from a distance grows. If the lemur is frightened or surprised by something,
it keeps the crest raised for a long time. Other animals, noticing it, begin
behaving more cautiously, and carefully monitor the surroundings.
The number of enemies of crested lemur is relatively small: adult animals of
this species are the size of a shepherd dog and weigh up to 50 kilograms. In
its strong physique, and partly even in its habits, crested lemur is similar
to a baboon – due to similar habitat and lifestyle. Crested lemurs roam the
sparse forests in troops numbering up to 20 individuals. Within the troop, there
are several stable families: male, one to two females and their cubs. In contrast
to the strict hierarchy that prevails within the baboon herd, in crested lemurs,
the submission relationships do not go beyond the family. But they meet the
enemy all together, face to face. And few can oppose the power of their collective
defense.
This species is a descendant of the ring-tailed lemur (Lemur catta), one of
the most numerous species of Holocene lemurs. This species has spent more time
on the ground than other lemurs, and in conditions, where the forest area of
Madagascar has decreased, so the peculiarity of behavior became favorable for
survival.
Crested lemur has large short head and strong jaws: it consumes mainly fibrous
vegetative food. To facilitate lateral jaw movements, the crested lemur’s canines
became short and similar in shape to the incisors. Molars are wide and flat,
and jaws are quite deep, so the head of crested lemur looks like a monkey’s
one. Only a “doglike” nose shows that these beasts belong to prosimians.
Grass is a hard-to-digest kind of food, so chewing takes a lot of time in these
lemurs, especially at the rest. However, such food is easily accessible. Vegetarian
diet is supplemented with large insects, eggs of ground-nesting bird, lizards
and frogs. As stocks of such food are scattered over a vast area, this lemur
has cheek pouches for food storage.
It is easy to get lost in tall grass, so the lemurs keep the constant contact
with each other. In order to be more noticeable, they have grown manes of long
white wool on their heads. Due to special subcutaneous muscles, it can rise
and lower, expressing the mood of the animal and giving signals to relatives.
The striped tail characteristic for ring-tailed lemur has become short in this
species (slightly longer than the body length), and the stripes are almost completely
blurred. The body of crested lemurs is colored olive-gray with darker back and
black “gloves”. On the face, wool is gray with dark spots around the eyes.
The animal moves mainly on four legs, which are of approximately the same length.
If necessary, crested lemur easily rears on its hind legs and can keep an upright
position for a long time.
In addition to visual signals, these lemurs exchange a variety of sounds. In
their “language”, barking, squeal, chirping and whistling are used. When the
troop feeds, several animals stay in alert: they observe the surroundings, warning
their relatives with harsh cries in case of danger.
The troop of crested lemurs has a vast territory. As these mammals feed on relatively
affordable food, they are tolerant of strangers. Sometimes two clans of lemurs
can feed at a short distance from each other, not paying any attention to each
other.
To notify relatives from other clans about their presence, crested lemurs mark
their territory. Their ancestors had odorous glands in the axillary area. To
make its relatives feel its smell, the ring-tailed lemur dragged its long tail
between the paw and the body, impregnating it with its scent. In the crested
lemur, tail is short and this beast would not be able to do that. However, this
species marks bundles of grass with secretions of the axillary glands, pinching
them between the arm and trunk in the same way. Usually, the entire clan leaves
their marks somewhere near each other in order for any relative from another
clan to estimate the number and strength of their clan. Sometimes animals do
a trick: they leave not one, but several marks. It happens that comparatively
small clan can save its territory from more numerous neighboring clans due to
such a trick.
The breeding season of crested lemurs lasts for almost all year round, but a
large number of the cubs are born at the beginning of the rain season. There
is only one cub in litter. It is similar in coloration to adult lemurs, but
lacks white tuft on the head.
A young animal stays with its parents for a long time, and remembers about kinship
relations for its whole life. Sexual maturity in this species comes at the age
of 15-18 months. Sometimes even young crested lemurs, having their own cubs,
can still continue begging for food from their parents for a certain time. Young
animals that have become independent often leave the parent group and form their
own one or join another small group. It happens if the clan becomes very numerous
– small-scale skirmishes are inevitable, and young animals prefer to stay away
from adults. Then the self-preservation instinct can take precedence over the
feelings for relatives, and the clan breaks apart.
The life expectancy of the crested lemur is 13 to 15 years.
Baribal
lemur (Ambulolemur terrestris)
Order: Primates (Primates)
Family: Lemurids (Lemuridae)
Habitat: Madagascar, savannas and sparse forests.
Picture by FanboyPhilosopher
In the Holocene, shortly before the human colonization of
Madagascar, the island harbored a great number of lemurs, including large ground-dwelling
animals similar to chimpanzees and gorillas in lifestyle. People destroyed them,
and from the whole variety of lemurs, only few rather small forms remained by
the end of human reign. After the disappearance of people, during the Ice Age,
some of the survived lemur species became extinct due to climatic changes. But
by the Neocene era, the few survivor forms began evolving actively, occupying
ecological niches available. Among the Neocene lemur species, there is baribal
lemur, a very large ground-dwelling prosimian.
Like the crested lemur, this animal is a descendant of the ring-tailed lemur
of the Holocene era. Baribal lemur is a large, heavily built beast, resembling
a bear outwardly. It is almost exclusively a ground-dwelling animal and it rarely
climbs trees – mostly only at a young age. The body length of this species is
up to one and a half meters, along with the tail.
The head is large and the snout is short. This lemur is omnivorous and has wide
jaws with tuberculate teeth, allowing it chewing easily both tubers and bulbs
from grasses, and small animals. The canines are short, only in old males they
protrude slightly from the mouth. The eyes are directed forward; the vision
is stereoscopic. The auricles are small, on their outer side long hair grows,
forming two thick tufts. Snout is covered with short wool; the nose and the
area around the mouth are bare. The bare skin on the muzzle has different color:
reddish-brown in males and grayish in females. When excited it is filled with
blood and acquires a noticeable red tint. The head is covered with a light gray
wool; long wool near the ears is black. It helps these beasts recognize each
other from afar. In males, white beards also grow. In the old males not only
beards, but also the wool on the throat and chest becomes white.
Body is covered with gray hair; on back a wide longitudinal dark stripe stretches.
Tail is short with a “brush” of black hair at the tip. Legs are plantigrade
with large feet. The animal usually moves on four legs, but often takes a bipedal
pose, monitoring the surroundings. The forelegs are slightly longer than the
hind legs, therefore, during the moving on four legs, the lemur’s shoulders
are higher than the rump, like in the gorilla.
Baribal lemurs stay in couples or family groups led by an adult male. There
are usually up to three adult females in the group, and their cubs not reached
puberty yet.
This species is omnivorous; if possible it can feed on carrion. Baribal lemur
is especially fond of roots and bulbs of plants. To get them, it pulls out the
whole plants and shakes the soil off the roots by blows against the ground.
It usually leaves greenery, or eats only the sappy lower parts of stems and
leafstalks. Next to the baribal lemur, other savanna dwellers – crested lemurs
– often feed, picking up leftover food of their larger relative. This species
often feeds on the remains of the prey of gefana, a large local predator. A
family group of baribal lemurs can easily drive a predator away from its prey.
Once a year, the female gives birth to one cub, but in about a quarter of cases
twins are born, especially in mature females. The cub is covered with black
wool completely. The female takes care of it for four months, and the young
animal spends the next year in the parental group. Sexual maturity in females
comes at the age of two years, while in males at three years.
Numidornis
(Numidornis atalantae)
Order: Gallinaceous birds (Galliformes)
Family: Guinea fowls (Numididae)
Habitat: Madagascar, savannas and foothills.
Once upon a time Madagascar had home to its own ratite bird – elephant bird
(Aepyornis), the heaviest of birds known to people, weighing up to half a ton
and found nowhere else. But their fate was as sad as that of other giants of
this island: Aepyornis became extinct shortly after the human colonization of
Madagascar. In the Neocene, another bird, that had lost the ability to fly,
appeared at this island. It is a representative of Galliformes, which even in
the human era expressed a tendency to reduce flight capabilities, although no
flightless species of fowl was known.
The Madagascar Numidornis is descended from guinea fowl (Numidia meleagris),
which was remarkable in its running ability. The descendant of this medium-sized
bird is a very remarkable creature: its height is up to 2 meters and weight
is about 150 kilograms. The constitution of Numidornis is robust, and its head
is relatively small.
Head, neck, and front of the chest (approximately to the level of the craw)
are featherless. The skin on the bare areas has a white color, which saves the
bird from overheating. On the head, there is a “helmet” of crescent shape, similar
to the crest of Parasaurolophus dinosaur, but without cavities. In males, this
crest is much larger than in females, and they use it for mating displays. At
the corners of the beak, there are large wattles, which can fill with blood
and stretch a lot. A circuit of blood vessels penetrates them, and through them
the bird radiates the excess of heat from her body. During the mating courtship,
in the male they increase significantly and become bright.
Legs of Numidornis are strong and muscular, feet are three-toed (the hind toe
is completely lost). The bird can reach speeds of up to 50 km/h, and accelerates
up to 60-70 km/h at a short distance (the bird is named after Atalanta, the
heroine of Greek myths famous for her speed of run). While running, the bird
can abruptly change the direction of movement, helping itself with short broad
wings like rheas did.
The plumage of Numidornis is striped: white cross stripes stretch on the bluish-gray
background. On the body, the stripes are narrow and of regular shape, and on
the wings, the stripes are wide, and their pattern is slightly irregular. Due
to this coloration, Numidornis hides easily from predators in the bush and grass.
This species keeps in family groups of one or two males (one of them obeys the
other one), and up to 5 or 6 females for each male. Birds are remarkable in
their courage: acting in a group, they can drive away the attacking predator.
While doing it, they utter loud screaming, stomping their feet and trying to
hit the predator with their claws, jumping on it, like a rooster.
Numidornises are omnivores. Their main food includes graminoid grains, small
vertebrates and large insects. If possible, they willingly feed on carrion,
driving other animals away from it.
Females nest in a group, placing their nests in the territory protected by males.
The nest is made in a shelter: in bushes or among tall grass. The clutch numbers
up to 10 eggs about 20 cm long with a mottled shell (random brown strokes on
a yellowish background).
The chicks have feather “caps” on their heads and yellow fluff with black longitudinal
stripes. The front of the head and neck is bare.
Adult birds of the parental group takes care of the chicks together. Juveniles
are fully feathered at the age of about one and a half month, and since sixth
month, the feathers on the head shed and the growth of “crest” begins. Birds
are fully mature at the age of two years. Lifespan is up to 20 years or more.
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