IS THE FUTURE
Ideas from film and book The Future is Wild are put in basis of present works. The author admits the priority of English scientist Dougal Dixon in researches in the present field of knowledge. The creating of the present works did not pursue the purpose of assignment of any ideas of Dougal Dixon. The author simply tells his own ideas about this theme. Let the reader judges itself as far as his opinion is true.
(Reflections above book and film)
At the end of the 2002 at the Animal planet channel the animated educational
serial The future is wild had been demonstrated.
In brief opening address to this film numerous professors and doctors of Philosophy from various inspiring respect institutions assured that the contents of film and logic of thinking of its authors fully comply with natural principles and laws of evolution. In comments due to course of film scientists tried to confirm ideas with real facts taking place in wildlife of our time.
Some months after watching this film completely, at the XVI Moscow International book fair I had bought the book The Future is Wild (two variants of this book had been printed: "facilitated" and full. I had bought full one, including 160 pages, therefore at references I always shall mean it). The book, certainly, is very beautiful: an excellent paper and the magnificent color illustrations created with the help of computer 3-D graphics. By the contents this book not absolutely coincides with film, sometimes supplementing, and anytime contradicting it. Authors of this book are Dougal Dixon and John Adams. In credits to film The Future is Wild Dougal Dixon is mentioned as the creator of strange and sometimes times horrible heroes of film.
However both film, and the book have caused at me a lot of bewildered questions, because heroes of this project, as it seemed to me, not so correspond to laws of evolution, to which specially invited scientists appeal. The book has partly removed some questions caused by film. To tell the truth, thus it has brought a lot of new questions, to answer which adequate is also difficult, if to make a start from laws of evolution.
Having armed with the literature, I had decided to dispel these doubts. For this purpose the book of N. F. Reymers Ecology. Theories, laws, rules, principles and hypotheses (Moscow, Magazine Russia Molodaya publishing, 1994) has perfectly approached. In it principles of development of live systems are full enough collected and perfectly stated. In this book there is a set of laws concerning principles of evolution of the organic world of the Earth. They were formulated in different time and by different scientists, therefore it is possible to assert safely, that they are not widely known in narrow sections, and all supporters of the theory of evolution know them.
Because the film in my consciousness was initial, and the book was secondary, I have arranged the comments to the project (we shall conditionally name so the symbiosis of film and book) The Future is Wild according to the order and names of film series. I think, it is simple to correlate them with the appropriate chapters of the book.
For now we shall go deep into abysses of time, and we shall try to understand, as far as the future on a small blue planet, the third from the Sun, can be wild...
Ice age warriors
The dog jaw of the sabertooth glutton.
One of animals of the future, shown in this series is the furious snow predator,
snow stalker, preying large animals. The fact, that the predator preying chase
larger than itself, can have long saber-like canines, is quite explain and
real. This is the fine adaptation to kill very big animals with thick skin
However all sabertooth animals, except for one shown in film, have some features of similarity. In particular, at them there are rather short and extended vertically face bones. It is enough to look at skulls of sabertooth cats and marsupial Thylacosmilus to be convinced in it. At fossil mammal-like reptiles (Theromorpha, Gorgonopsia), certainly, there were long jaws with saber-like canines. But their skulls were high, extended vertically, and the basis of the canine was made more solid with thick jaw bones.
At the snow stalker from the future the skull has absolutely other form: long canines are in the forward part of a muzzle, and jaws are more similar on dogs ones - they are extended and low.
The form of jaws directly depends on character of drawing of the bite to the prey by the predator. The dog with long jaws catches prey, not trying to stick teeth deeply, and puts extensive superficial wounds (it tears catch). Thus the effort of jerk is allocated along the jaw. The sabertooth cat sticks canines deeply into the prey body (it pins up catch), and the pressure is allocated across the jaw. Jaw bones of sabertooth predator are arranged so, that pressure of force of counteraction to the bite passes along short bones and is allocated regularly by the front part of the skull. The skull of marsupial sabertooth Thylacosmilus and sabertooth cats has in connection with it very specific form: the form of face bones as if continues the bend of the canine. At the snow predator between lines of canine and the top jaw there is the appreciable corner - almost 90°. If the snow predator (existing in such shape as it is shown in film) will strike a bite by its saber-like canines, big troubles wait for it. Its muzzle (jaw bones) is thinner and weaker, than at sabertooth cats or marsupials. From strong cross loading the top jaw can simple crackle and break somewhere in area of the first molars.
Therefore I can not admire with the fine adaptation of this animal to the predating.
The gannet with goose paws the artiodactyl horse of the evolution.
Certainly, it is possible to consider as a trifle this remark, but nevertheless I shall allow myself to say spiteful things once again. Not having noticed anything especially impossible from the point of view of biology in the image of the huge bird gannetwhale similar to the seal, I had paid attention to the next miss of artists of 3D-animation of the film. The matter is that the prototype (and the ancestor!) of this sea bird, the gannet (Sula bassana), concerns to order of birds Pelecaniformes. At them the palama connects all four toes, the back toe (I) is connected by palama with the internal finger (II). And the gannetwhale should belong to the same order or to be the representative of undoubtedly related (descendant) order! And at ducks and geese (order Anseriformes) the palama connects only toes II, III, IV. Back (I) toe is free. According the shape of the floating gannetwhale, shown in film on the scheme, it nevertheless has goose paws. Certainly, it is not comparable with monkeys babookari running back to front (Ill write about it later), but nevertheless it slightly cuts to the quick.
Survivors in salt
The black-masked robber.
These series of film and the chapter of the book have caused at me least questions and bewilderment. The only thing about what it would be desirable to tell few words, is the family tree of the graiken the predator of karst caves of the Mediterranean desert. The forest marten is attributed to ancestors to this animal. I completely can not exclude such course of events you can see the ground squirrel in Northern America. But the origin of graiken not from the marten, and from much more ground predators - ferret or hermin, can be more probable. They would need to pass much shorter evolutional way, turning to the ground predator similar to the bullterrier-sized dachshund. The marten is more specialized for life on trees, therefore it should strongly change not only anatomy, but also behavior, turning from the predator of the three-dimensional world of wood crones to the predator of the two-dimensional world of ground surface.
Raiders of grassland
Is the babookari the end of history of primates or the new page of it?
Having the strange wish to exterminate as much modern animals, as possible,
founders of film and the book The Future is Wild had considerably thin out
practically all order of primates. I do not think that it is correct. The matter
is that primates have successfully passed the durability test. So, the primitivest
representative of primates, Purgatorius, had gone through mass extinction of
fauna at the end of the Cretaceous period, when all dinosaurs (two orders of
reptiles!) and set of other animals including mammals, have died out practically
without leaving a trace. During the Cenozoic era primates have gone through
changes of the climate at the end of Eocene, ruined set of archaic orders of
mammals, and also ice ages of Pleistocene and Holocene, pushed aside heat-loving
fauna and flora to equatorial areas of the Earth. Now on the Earth there is
a set of species of primates, both the high, and the primitive ones. And their
fauna and areas have developed under influence of last congelations! Therefore
the full extinction of primates even in the most terrible (within the limits
of allowable) an ice age is rather increadible. Some primates well enough adapt
for changes of the natural environment. It is mistakenly to suppose, that all
primates are by all means connected in their life with tropical forests. So,
Japanese snow macaques Macaca fuscata tolerate snow winters of the north of
Japan, and in zoos and in partially free conditions they had normally existed
without warm shelters in conditions of the Central Europe (Germany) and Northwest
of Russia (the Leningrad zoo). Besides, the Japanese macaques can live in coastal
zone of the sea, eating sea animals equally with usual food. Other macaques
(M. mulatta and M. sylvanus) live not only in forests, but also in woodless
district. Some baboons (Papio) in wild nature live in open district (savannas,
mountains). Indian leaf monkey (Presbytis entellus) lives in India from tropical
woods up to mountain meadows (4000 m above sea level). The gelada (Theropithecus
gelada) lives in mountains of Ethiopia on stony areas and in thickets of bushes
at height more than 1800 m above sea level. Among guenons in savanna the hussar
monkey (Erythrocebus patas), and green guenons (Cercopithecus aethiops and
C. pygerythrus) live. The monkeys have not connected with forest habitats,
apparently, are rather numerous. In case of reduction of the forest areas they
will have chance not only for survival, but also for expansion of areas. Monkeys
of New World and apes, most likely, will be not so lucky in the case of ice
age; but though it is necessary to remember, that largest of known primates,
Giganthopithecus, lived on the Earth in the time of Pleistocene congelation.
Besides it was an ape! Among lemurs the semi-ground ring-tailed lemur (Lemur
catta) has chances for survival. Sifaka (Propithecus verreauxi) also spends
a lot of time on the ground. It is necessary to remember, that in precipitations
of Pleistocene at the Madagascar lemurs, convergent similar to baboons are
found. African bush baby (Galago) also lives not only in forests, but also
in woodlands, and in bush. So, primates have huge chances of survival, but
The strange rodent rattleback, the inhabitant of Amason region savanna, practically
in anything has not caused at me doubts in an opportunity of the existence
in the future, except for some features. So, the head of rattleback from Amazon
savanna is very much similar to snakes one by huge mouth cut. It is practically
deprived such characteristic feature of mammals, as soft lips. And it is strange
- how rattleback cubs will suck milk? Fire resistance of the rattlebacks armour
causes some doubts too. Keratin, of which the armour consists, is nevertheless
the protein. And protein as well as any organic substance does not differ in
special fire resistance. So rattleback nevertheless should suffer rather strongly
in savanna fire - tortoises protected not only with horn, but also with the
osseous armour, much more mineralized and less combustible, burn down in fire.
Surprise is caused with relations of rattleback species from meadows of Amazon region and from desert of Northern America. The matter is that the North-American species is more primitive than Amazonian one, therefore it can not be the descendant of South-American species! Primitive features of the northerner are: muzzle covered with fur (at southern species it is covered with shell plates) and presence of tail (the southerner is ecaudate (tailless)). As we see, according the constitution the southerner is more specialized species. Therefore their relations stated in film The mystery of spinks, do not correspond to the law of irreversibility of the evolution, formulated by L. Dollo:
The Organism (population, species) can not return to the former condition, which has been already realized in the number of its ancestors.
Undoubtedly, ancestors of southern rattleback were caudate and had hairy heads.
But southern rattleback had lost them, so, this features can not appear again
at its northern "descendant". But they are at this species, hence,
it can not to be the descendant of southern species!
One more strange feature of southern rattleback is its diet. Specialization to feeding by eggs of large (and very dangerous!) species of flightless birds is more than strange feature of initially very timid rodent. Both possible (according the film) ancestors of the rattleback, agouti (Dasyprocta agouti) and paca (Cuninculus paca) are very timid animals; it happens, that the agouti die because of strong fright. How could they follow the road of such specialization? Most likely, these species in the beginning "had armed", not changing the traditional vegetative diet, and only having armours, they included to the diet eggs of predatory huge birds carakillers. Rattleback can not eat only eggs: it is very seasonal kind of forage, accessible during some months per year. All rest of the time they should live half-starving. Most likely, eggs of large birds are only pleasant dessert, which owners, to tell the truth, can kill, and will not ask the name.
In the book The Future is Wild it is told about the same animal, that its diet is various and includes different plants and animals.
Lapse of movie-makers the hunting Carakiller
There is in film Raiders of the grassland one episode, which has caused a smile at me. I advise to watch very attentively an episode of film in which at the circuit huge predatory bird carakillers hunting monkeys babookari are shown. Especially I advise to pay attention to position of models of monkeys. They stand a half ring, heads outside. The TV-camera moves and shows this stage from above. It is visible, as one model of predatory bird bypasses herd of monkeys, and hunting begins. The circuit of birds starts to chase monkeys, and at this time... monkeys turn by heads to chasers, and run back to front! There are no doubts - the mane on heads of monkeys models is well visible, and at the moment of chasing of primates it is inverted back!
The mystery of spinks
The true mystery of spinks.
Spink is the flightless bird similar to mole. Colonies of these creatures
live under the ground and dig long burrows, reaching up to food. If in film
their life does not cause the special questions, in the book there is a fact,
forcing to scratch a nape:
Only one female in the colony the queen - is capable to pair and to lay eggs. She can adjust sex of the future nestlings and their ability to pairing, adding in eggs certain hormones (The Future is Wild, page 56).
This fact also has puzzled me. There is, certainly, in modern Africa the species of mammals, which habit of life has inspired authors of the book and film to the invention of burrowing bird spink. It is the rodent Heterocephalus glaber, living in Ethiopia, Kenya and Somalia. In its colony there is only one female capable to breeding, and all other individuals care of her and her posterity. At spink as it is seen, the same feature occurs(will it occur?). Similar examples can be found at fishes. So, it is the sea fish known as clown fish (but at this fish the main pair looks at the posterity). The reason of sterility of individuals from number from the nr. three up to nr. last is elementary stress, that is in the colony; it is enough the simple presence of main pair to castrate subdominant individuals by themselves by emitting of hormones (for example, the simple adrenaline) in the blood. And it is simple to control them from outside to main pair it is enough to show the superiority more often. Thus, hormonal "castration" by queen of other individuals for all their life becomes simply excessive, and even harmful: the situation can change so, that the colony will lose the fertile queen. Then the colony will die - there will be no female, capable to replace the queen. Also at the increased mortality of colony members queens efforts in laying eggs will not suffice for reproduction. Then the colony can be lost, or the second queen had to appear. Thus, not the queen, but conditions of environment should adjust relations of queen and working individuals of the colony. Then the colony will be capable to answer any change of environment adequately. At Amphiprion fishes it occurs: if one fish from main pair perishes, number three becomes capable to breeding.
The question of sex determination at colonial animals with natural "absolute monarchy" is solved differently: at bees from fertilized oosperms females, and from not fertilized - males (drones) excluse. At vertebrates features are more artful. At clown fishes number one in a colony is always the female, and second one is the male, other fishes have no sex. When the female perishes, number three becomes the male, and the male for some days changes sex and turns to female though it could be the first-rate male earlier and had regularly fertilized eggs. At fishes sea angels (Pomacanthus) number one in school is always the male, and other ones are females. If the male will be lost, the main female should accept the domination and the male sex. It becomes possible because the sex at fishes can be determined not only genetically, but also by conditions of environment. So, at the Amazon fish butterfly perch (Apistogramma) in acidic water more females, and in alkaline one - males hatch. At clown fishes and sea angels the sex is determined by hierarchy. At more progressive animal - reptiles - the sex can be determined by temperature of egg incubating. It is known, that at turtles and crocodiles at higher temperature of incubating more females hatch, and at lowered one - males. But mammals and birds are creatures of other order. Their organism is more closed and rather more independent system, than the organism of fish and reptile (You see, the house-keeping of mammals or birds is easier, than reptiles, and there the parameter of autonomy of organisms of first ones and openness of organisms of last ones is seen). At them the sex is determined only at the chromosomal level. Already at fertilization it is clear, who will be born: the cock or the hen. To tell the truth, at animals and birds the sex of posterity is differently determined: at mammals males, and at birds - females have different sexual chromosomes (XY). It shows well the independent formation at them of this attribute. Hormonal influence to sex at vertebrates is probable only partially: at surplus of female sexual hormones at the female the male embryo can become similar to the female. But genetically it nevertheless will be male. Such way of sex regulation is possible principally, but it works only when the embryo is in close contact to the parent organism for a long time (at mammals).
At spinks such trick is unsuccessful: the egg stays in mothers organism short time (about day as at the most part of birds), and the oosperm loses contact to the mothers organism even earlier: after fertilization the birds oosperm does not attach to the wall of an oviduct (as at mammals), but is covering by egg envelopes and egg shell. Further the egg is laid by the female and hormones can be entered into it only by syringe. And spinks precisely have not invented syringe. Therefore the female, hatching already laid eggs, can not affect to sex of future chicks.
Assuming at spinks hormonal sex regulation of nestlings, authors of this species of the future conflict to the L. Dollos law of irreversibility of evolution. The primitive form in this case is the sex determination of posterity by external factors, and progressive one is genetic sex determination. Therefore this burrowing mole-bird will not be so artful arranged as scientific fathers suppose it in the book.
The blindness attributed to the bird spink looks strange thing:
... spinks are practically blind! (Page 57)
I can not agree with it for the several reasons absolutely:
First, both in film, and in the book at these birds large eyes protected from sand by rich hair-looking feathers, carrying out a role of eyelashes are appreciable. And if eyes are protected, it means, that they normally work and there is a sense to protect them. Life in darkness is not necessarily accompanied by disappearance of eyes - other variant is also possible. Among deep-water and cave animals equally with blind very big-eyed forms are known also.
Second, in film (not in the book!) it is well visible, that males differ from females with more contrast colouring and bright colouring of back and tail. As any attribute has biological sense, it is possible to assume, that colouring plays a part in sexing at animals of the present species. Hence, spink is not blind creature; for a blind animal dimorphism in colouring is not necessary. Besides in courtship ritual of spink, shown in film, males attract females by the special "drum-type" movements of paw-looking wings. For quite clear reason I can not tell, what plays the basic role in attraction of the female - movements of wings or drumming by the ground which they make. Therefore I can assume that if for females it is more important than movement, rather than sounds, sight at them must be advanced. Otherwise such feature of behavior simply would not be developed, as it would not have biological sense.
Thirdly, if to assume, that spink is blind, it is necessary to think of what feeling will replace sight to it. At blind mammals this is the sense of smell, and at snakes (whose sight is substantially lost) - the chemical feeling close by the nature to sense of smell. This feeling should give a creature the objective and full information about environmental objects, including such ones with which the animal does not cooperate directly. At spink the sense of smell can not be advanced: spink had evolved from gallinaceous birds never spending for food search a lot of time and do not involving thus any special skills. In the nature there are, certainly, birds with the advanced sense of smell - the American vultures (Cathartidae). But they concern to rather primitive birds, and their habit of life assumes search of invisible, but strong smelling carrion. And the food of gallinaceous birds is very accessible and is not hidden it consists of plants. For their search sense of smell is absolutely not necessary. Therefore sense of smell at spinks will not begin to develop, because olfactory lobes of brain are strongly reduced as at their ancestors. And the return from the specialized condition in primitive is impossible - evolution is irreversible.
Touch and taste senses work only at direct contact to objects, the hearing is practically useless at research of lifeless objects, sense of smell at the majority of birds is advanced very poorly. Therefore from five feelings in interaction with world around at spinks the sight will play nevertheless the main role.
As far as the probability of occurrence of such species, as spink is, is great? It is very small. And there are two reasons for this. First, birds in comparison with other classes of tetrapods are very conservative. If to compare the body shape of different reptiles (lizard, snake, sea turtle, plesiosaurus, Brachiosaurus, Iguanodon, Tyrannosaurus, crocodile, pterodactylus, Cynognathus) and mammal (rat, bat, flying lemur, mole, whale, kangaroo, gorilla, giraffe, hippopotamus, elephant, antelope, sloth, seal), it is possible to see, how various externally they are and how many vital forms they had formed in the past or have in the present. In comparison with them birds are extremely conservative. At the best case at them three variants of a structure are present: flying (the majority of birds), ground (ostrich-like) and swimming (penguin-like) with some transitions between them. Birds are specialized to flight and life in open habitats, therefore occurrence completely burrowing form among them is absolutely incredible. The puffin submitted as a sample of modern burrowing bird, however is able to fly and to swim. It is far by the habit of life from burrowing mole-like spink. And second reason is: so sharp change of habit of life by flying bird can take place only in the case when advantages of new habit of life will favor to survival. For example, it will be possible, if underground life will be more favorable from the point of view of food abundance or absence of competitors and enemies. Under the ground there is some food, but it is more difficult for getting - the thickness of the ground which should be dug prevents it. There is less number of predators under the ground, than on the surface, but there is plenty of competitors: they will be mammals, rodents already presently having underground habit of life. Rodents easily had endured ice ages of Pleistocene and Holocene, therefore it is possible to assert safely, that they will survive in the future. And at presence of underground species of rodents the bird hardly can pass to underground habit of life: the competition will be too great, and benefits - too insignificant.
And roots of desert turnip are easy for digging out from the surface: gallinaceous birds are big masters to dig ground by legs and by beak.
Giants of the swamp
Can toraton be careful mum?
In film and book authors result as the possible inhabitant of the Earth the
future toraton - the huge reptile, the descendant of the tortoise. So, about
it they tell that this animal weighs about 120 tons, lives in herds and cares
of the posterity. I also want to discuss these hypotheses.
How will the huge tortoise - toraton lay eggs? The maximal size of the egg at terrestrial animal presently is 9 litres (the egg of recently dyed out, almost modern bird Aepyornis, whose weight is supposing approximately in 500 kg). Eggs of dinosaurs (even the largest, 100 - 110-ton species) were not larger, and even smaller than these ones (and the animal laid them was many times more massive than the most fattened Aepyornis). Hence, the expecting of the laying of so huge eggs (possible, 100-liter ones) from 120-ton animal is completely incredible. At such eggs the ratio between the shell area and volume (and also the embryos need for oxygen) is the extremely adverse. Certainly, the quantity of oxygen in atmosphere of the Earth in the future can increase. But as far as it be? In Carboniferous and Permian periods (time of huge insects existing) the contents of Ī2 in an atmosphere was about 30 %, that only ~1.5 time more than modern one. But, if the egg of toraton even will be twice larger than the greatest possible size for our time (at 21 % of Ī2 in an atmosphere), its volume will increase at 8 times, and the surface - only at 4, the relative surface appears 2 times less, that means it will be backward the rise of contents of Ī2 in air even 1.5 time. Hence, enrichment of the atmosphere with oxygen will have only insignificant effect to the increase of the egg size of terrestrial vertebrates.
The care of posterity at toraton also departs in area of science fiction. If to take into account the fact, that eggs of toraton can not be large (concerning the size of the animal), it is possible to predict that just hatched from eggs cubs of toraton will be very small (possible, 10 - 12 kg, proceeding from approximate parameters of egg of Aepyornis adjusted for contents of Ī2 in atmosphere). It makes less than 0,01 % from weight of the adult animal. Is it possible to imagine realization of parental instincts of the 120-ton female of toraton? Taking into account, that the incubating of eggs of modern tortoises lasts from 40 up to 140 days (and it takes place not at largest species, for gigantic tortoise Aldabrochelys gigantea term about 162 day at +28°Ń is mentioned), it is logical to assume, that eggs of toraton will ripe even more long time - possible, up to 7 - 8 months. Imagine what the female of toraton, protecting the nesting place, would make with environmental vegetation during 7 - 8 months! I think, she would have eaten up to roots the forest kilometer far around of the nest! If to sum here her numerous relatives trampling near, the situation would be just like in modern African reserves: elephants eat all vegetation at protected territories. To avoid the ecological accident, toratons should live constantly moving, continuously migrating across huge territory. Hence, the female most likely would leave the nest after laying of eggs: all species of modern turtles act so. Hence, there can not be any relations of consanguinty between toratons in herd; herds of these animals most likely would be formed by animals of close age from different hatches or the young growth would bunch to the generated herds. Besides if cubs of toraton are very small in comparison with adults, adult individuals simply could trample own young growth at movement of herd.
In view of this fact the statement from the book that the female helps cubs to hatch (page 86), also is the purest invention. Even at philoprogenitive crocodiles the cub should leave the egg shell itself. And the difference in size of egg and mums can result to that the toraton female simply will crush cubs by the beak instead of helping them to hatch.
The hero of N. V. Gogols Dead souls Kifa Mockievich was asked somehow a certain question: Well, and if the elephant was born in the egg, you see, methinks the shell would be strongly thick it can not be shot through by the cannon; it is necessary to invent any new fire instrument. Toraton is practically that elephant, even it is few times larger. And nevertheless its egg should not be a certain supernatural object. If the shell of toraton egg will be so thick, that the cub can not punch it from within, it is necessary to assume, that the egg shell will be dense. But everyone who considered egg shells under the magnifier, knows, that it is not integral, as the piece of ceramic pot, but porous. Pores are necessary for breath of the embryo. And if the shell will be very thick, beforehand it is possible to take off a question on, whether cub will punch it the events simply will not reach to it, the embryo will suffocate in egg.
In general, the egg is the surprising object from the point of view of physics. Its durability is provided not only by durability of the shell, but also by the shape of egg. When the hen (turkey, ostrich or Aepyornis mum etc.) is hatching eggs, her weight is allocated along the shell surface. Equally effective of these forces, directed inside of egg perpendicularly to its shell, appears insignificant. But the force of the hatching chock enclosed from within of the egg vault, easily will break the shell. Therefore it is not necessary to be afraid, that the cub will not punch egg shell.
Hereditary inclinations of toraton are not so favorable for fast growth. That to increase weight up to 6 tons (as at the elephant) for 30 years (according the book, in the film the age of five years, necessary for it, is noted), the 10 - 12-kilogram cub should add about 0,57 kg per day. Can the turtle, even very huge one, grow according such rates? Whether becomes the carapace a handicap to it? Growth of any bone, including carapace bone, consists of opposite processes of destruction and increasing. Thus the bone can grow, not changing the form and almost constantly keeping proportions. Whether can the bone of toraton, especially young one, be updated so quickly? I think, no - toraton belongs to cold-blooded animals and its physiological processes are slow. And at the small cub of toraton fluctuations of the body temperature are more significant, than at the adult one. Dinosaurs, its approximate analogues, according data of structure of bones, were nevertheless warm-blooded vertebrates.
Certainly, the probable exit from the created difficulty is to assume the live-bearing of toraton. The live-bearing animal can give birth to very large cubs due to active supply of the embryo by oxygen from an organism of mother. But also it is necessary to remember that turtles are very conservative group of reptiles. They exist on the Earth from Triassic period, but no one species of turtles is live-bearing, while snakes and lizards (and among extinct reptiles - ichthyosaurs) freely can give rise to alive cubs. Thus it is necessary to take into account, that lizards are known from the Permian deposits (coevals of turtles), ichthyosaurs had appeared in Triassic and practically at once had become live-bearing, and snakes are known from the Cretaceous period it is most young group of reptiles, and in it already there are many live-bearing forms. As we see, turtles had a lot of time for development of live-bearing as way of reproduction, but they have not taken advantage of it. Therefore I think, it is useless to wait, that during the nearest 100 million years turtles suddenly will become live-bearing. On the contrary, at increase of the contents of oxygen in atmosphere, temperature and humidity of climate benefit will be received just by egg-laying species. The live-bearing at reptiles is the adaptation to extreme conditions: it is known, that the same species of lizards in warm valleys and foothills can be egg-laying, and in cool mountains - live-bearing. An adder (Vipera berus), the unique species of snakes living behind Northern Polar circle, is live-bearing! And the giant toraton, undoubtedly, can not become live-bearing reptile in conditions of eternal tropics of the Earth of the future.
Group behavior of toraton is also rather doubtful fact. Certainly, we dont know traces of fossil turtles proving the gregarious habit of life of these animals (it is known for dinosaurs), but no one modern species of turtles live in herds. Certainly, at the rich fodder site some turtles gather at times. But few animals, and even some tens animals are yet not a herd. Elements of herd are hierarchy (here there is a leader and subordinates), system of the communications, including poses of domination and submission, organization. The herd is more, than simply group of animals. The herd is original super-organism. And whether are turtles with their, to put it mildly, not so remarkable intelligence capable to create such herd? Certainly, the answer is: no. Therefore the family group of toratons, searching for the lost cub, shown in film, is a purest imagination.
The swampus it hadnt looked before the leap to the land.
Swampus is at the same degree unreal creature, as well as toraton. I do not
deny that water animals can adapt to rather long existence on land. An example
of that is literally before our eyes. Snail Ampullaria, usual aquarium species
of snails, creeps out to land for egg laying. But whether can the octopus repeat
its feat? I think, it is absolutely impossible. Octopuses (as, however, all
other cephalopods) have not developed even fresh and salted waters for all
millions years of existence on the Earth (They had appeared on the Earth, according
the fossil record, in Cambrian period, about 550 million years ago, it was
enough time at them). Is it necessary to speak here about development of land?
There is one colossal obstacle which cephalopod still had not overcome - it
is the water salinity. It is known, that in Black Sea there are no species
of octopuses though the climate here is quite favorable for their life. But
a saltness of the Black Sea water of 15 , whereas at ocean - 35 . It also
is that barrier.
The mudskipper (Periophthalmus spp.) is given in film as argument of that sea inhabitants can live on land. But the fish is nevertheless not the octopus. The mudskipper can live both in salt ocean, and in almost fresh water: its kidneys work by other principle, rather than at the octopus. And endurance of the mudskipper to salts also has determined its success in survival: it had taken advantage (in evolutionary sense) of that chance, which frogs obviously could not use: amphibians do not endure salt water. If they slould be more resistant to salt, an ancestor of the mudskipper should not develop salt sea bogs: all habitats for a long time would be occupied by frogs and ancestors of this fish hardly could compete to them. So the mudskipper is an argument absolutely of other sort: it shows that to species can occupy a new ecological niche only when it is rather free.
Let's return, however, to our swampus. Blood of the octopus is isoosmotic to sea water (it has an identical salinity, as it), its kidneys are not adapted to removing of surplus of water from an organism. At the same time kidneys of freshwater animals excrete from an organism huge amount of the diluted urine - up to 200 % of weight of the body (crustacean Daphnia), and even up to 400 % (bivalve mollusc Anodonta). Kidneys of vertebrates work for keeping of constancy of blood structure, removing from it in different situations salt or water. Water of poor salted bogs of the future will not have constant salinity. If to take into account, that the level of ocean in the future had risen, it is possible to assert safely, that humidity of air had strongly increased. In such conditions it is possible to expect daily rains of terrible, pernicious for octopuses FRESH WATER. Hence, the swampus (and, the most important thing, its direct, still sea ancestor) daily should be exposed to completely inconceivable test for cephalopods. And the young growth of the swampus, according the idea of film, must be reared in rain, practically distilled water! Any octopus would not sustain such mockery and would die within several hours under the down-pour rain.
In the book it is underlined, that the female of the octopus urinates in the water reserved in the certain plant, where the young growth is reared, to increase its salinity. Taking into account features of physiology of the octopus, it is necessary to notice, that by this action it can make fresh its own blood and die: salts from water will not enter in her body instead of removed at urinating ones owing to absence of sea water on land. Besides I think that authors of the book understand clearly that to salt water and to urinate in it are two completely different things. Urine of any animal, including the octopus, contains not only salts, but also rather poisonous products of metabolism. So, at octopuses the basic product of a metabolism is the ammonia secreting as compounds of ammonium (NH4+). Ions of ammonium are very poisonous: their maximum permissible concentration in water of sea aquarium should not exceed 0,01 mg per liter. Taking into account high sensitivity of sea animals (and in particular cephalopods) to accumulation of ammonium in water, it is possible to assume, that philoprogenitive mummy simply will poison its own posterity, having decided to salt water in the plant crown by so unpleasant kind. Therefore the hypothesis of authors of the book does not solve a problem, and simply translates it from one channel to another, not removing it completely.
Certainly, it is possible to assume, that in connection with an output(exit) on land the marsh octopus instead of ammonia an end-product of a secretion will have, for example, urea (too poisonous) or a uric acid. However, taking into account the big conservatism of cephalopods in the past (500 million years did not change an inhabitancy, and so, and), it is difficult to admit(allow) physiology, that they can develop in the future (for less than 100 million years) other mechanism of a secretion.
One more strangeness stated in the book - features of breath of the swampus. To be more exact, to this creature ability to live on land during four days, using the oxygen reserved in water, is attributed! And how else to understand the following information:
It can not is high-grade breathe by atmospheric air and lives due to the limited stock of the oxygen, which had been saved up in tissues and blood. As soon as these stocks are exhausted, the animal again should plunge into water and sate blood with the oxygen dissolved in it.
Swampus is capable to live on land about four days in succession... (The Future is Wild, page 82)???
And literally on the next page very much advanced intelligence of marsh octopuses is described. And the intelligence is the product of activity of the advanced brain which, as it is known, is very exacting to oxygen and has not got used to stay at short rations. Can the 20-kilogram octopus really save up in the body enough large amount of oxygen for independent existence and additional charging of large brain?
It is not clear, why the swampus can not breathe using skin, similarly to the frog and the mudskipper (which, I remind, is shown as the certain analogue of the swampus). It is rather favorable: in the atmosphere of the future there will be more oxygen, than now is (authors of the book and film repeatedly speak about it), and this amount obviously is more, than in water of bog where except for the octopus other creatures, and also rotting plants consume oxygen. And skin breath or formation in pallial cavity of animal the analogue of lungs (similarly to change of gills at overland crabs and Birgus crustacean) could become way out for this new immigrant. But authors, probably, had considered it unnecessary.
Remembering about the scientific approach which is declared by authors of the book and film, it is necessary to remember the principle of pre-adaptation, known in biology:
The principle of pre-adaptation is, that organisms occupy all new ecological niches (at their occurrence) due to presence at them the property of genetic pre-adaptation. It means that ability to the adaptation at organisms is incorporated initially and is not connected directly to their interaction with the habitat. Such ability is caused by practically endless of the genetic code and because of it - the information in genotype of any of organisms.
In other words, organisms beforehand, by virtue of genetic reserves of the
population, have the greater or smaller amount of attributes, allowing to survive
at change of the inhabitancy or to occupy actively any new environment. Such
example can be seen at the animals developing land in Paleozoic era. Arthropod
had strong shells protecting them not only against enemies, but also against
losses of water from the organism. Durability of the shell (it is an external
skeleton) allow the animal not only to protect itself against enemies, but
also to keep the constant body shape on land. Segmented strong extremities
allowed moving there, where pushing out force of water did not help to support
the body. The crossopterygian fish already before the land developing
had lungs, powerful flipper-like fins and strong internal skeleton. Its scales
were developed as the adaptation for protection against predators, but it perfectly
protected the body against drying up. Its kidneys did not allocate the certain
amount of salts from the organism, and worked for maintenance of constant chemical
structure of blood; they could not only excrete out, but also keep in body
salt and water. Such features already available at animals up to land developing,
also had allowed them to make a step through the edge of water.
Fishes had not cast by hundreds ashore and had not dry up there in the insuperable desire to develop land, which has gushed over them, as creationists try to present this process. Not all fishes, but only that species, which, perhaps, were anatomical ready to it, had expanded to land habitats.
Not always such step is made by most progressive forms: cephalopods in Paleozoic were more active and intellectually advanced, rather than fishes or arthropods. But at cephalopod during the process of evolution the reduction of an external and internal skeleton (up to its full disappearance at modern octopuses) had taken place. Their single-layered covers of body had not protect against drying up (and what for is it? Cephalopods lived in the sea, and the sea dries up very seldom). Their kidneys could not support constant structure of blood (and what for is it? Sea water is very stable: its structure appreciably varies only during huge time intervals - hundred millions years). Therefore it is possible to draw a conclusion that fishes and arthropods had been more pre-adapted to life on land, than the octopus. They had adapted to life in more changeable conditions, and resistance to changes of environment had allowed them to expand to land; and cephalopods at all their intelligence could not and can hardly make that. Hence, the way to the land is prohibited to the swampus and its followers.
In view of these reflections it is clearly, that such animals as elephant-shaped megasquid and agile squibbon, presented in following series of film and chapters of the book, simply could not appear. Besides octopuses (including the swampus) and squids (including the megasquid and squibbon) belong to completely different groups of cephalopods (octopuses are members of the order Octopoda, and squids of order Theutida). Undoubtedly, at swampus in film and book 8 tentacles are well appreciable; and at the megasquid and squibbon 10 ones are shown. Hence, they are representatives of completely different orders of class. How big is the probability of that great break to land (very large and essential evolutionary transformation) was made independently from each other and in parallel to each other by representatives of two different groups of one class? It is practically zero. Besides the basic line of evolution of squids is directed to the adaptation to pelagic and plancton habit of life (The Russian scientist, the expert in cephalopods Kir Nazimovich Nesis considers so), but not to the way of development of littoral zone and salt sea bogs from which it is possible to make jump to the land as it was made by crabs. Hence, the octopus in swamp and the squid in forest is practically the same, as the mammoth tree at the ocean bottom and the giraffe in Himalayan Mountains.
Swampus cradle can it live in swamp?
The plant which is shown in film and book as "cradle" for young
swampuses, is also interesting. I do not contest, that such plants are present
in our time: they are the representatives of family Bromeliaceae living in
America (1 species is known from Central Africa). In axils of their leaves
water is collecting, and there various organisms use. Among the population
of leaf axils of bromeliads there are larvae of mosquitoes and midges, and
also carnivorous water plant Utricularia nelumbifolia. And forest frogs Dendrobates
rear tadpoles in leaf axils of bromeliads. Therefore I do not contest that
the union of animal and plant shown in film is real: such cooperation is present
in the modern world. Another thing surprises: how the water-STOCKING plant
appeared at the swamp? In what the biological sense of such phenomenon consists?
In the case of bromeliads the sense is clear - the epiphytic plant lives on
branches of tree and reserves water from rain up to rain. The adaptation for
stocking of water had been evolved not in marsh, but rather in dry conditions,
when there is no constant access of roots to water. In constantly damp ground
of swamp the strategy of stocking of water is senseless there is enough water
here, and the water-bearing layer is not deep from the ground surface. According
the outline shown in film, at the plant there is the well-advanced main root
reaching deeply in ground (bromeliads do not have main root, as all Monocotyledones).
It allows assuming, that the plant is well supplied with water with the help
of roots. Had this plant evolve during millions years as the cradle for young
swampuses? You see, the evolution does not have any certain ultimate goal.
The devil is not too terrible, as it is pictured... Even sea devil is.
One of characters of this chapter (and series of film), devoted to rich life
to the shallow seas of all-planet tropics, is the creature resembling the water
beetle, slug and sea turtle simultaneously - the swimming mollusc named the
reef glider. This is the creature with streamline torpedo-looking body and
with three pairs of blades similar to flippers of sea turtles. In opinion of
authors of the project, such creature can evolve from modern nudibranch molluscs
plentifully inhabiting sea from tropics up to polar altitudes. It is possible
to agree with it, because now there are similar creatures in the pcean, for
example, bright red nudibranch mollusc the Spanish dancer moving in thickness
of water, wriggling flat body. And another nudibranch mollusc, Glaucus, also
most likely is the direct ancestor of reef gliders of the future. I am prone
to think so because of character of relations of Glaucus and one more inhabitant
of modern ocean coelenterate Physalia.
The main character of this chapter (and series of film) is giant siphonophore, similar to huge sailing vessel the sea phantom. And large reef gliders eat poisonous feelers of this giant, just as in the modern sea the Glaucus mollusc regales itself with feelers of Physalia, which one touch, by the way, will suffice to send the man to the kingdom come.
But authors of the book, describing features of the reef glider, had once again let themselves down by excessive detailed elaboration. In particular, to the reef glider the feature haā been attributed which makes completely impossible that habit of life, which is attributed to this creature. Buoyancy of this creature they explain by the thesis, that in the body of this animal ions of ammonium are collecting. In itself this feature is not supernatural and phenomenal - at ocean now so-called ammoniac squids (Cranchiidae) live. Their buoyancy just also is caused by accumulation of ions of ammonium in the special float bag. But the difficulty consists in very small efficiency of such mechanism. According to the Sovet expert in cephalopods Kir Nazimovich Nesis, for maintenance of buoyancy of such squid to each cubic centimeter of muscles of this animal 2 sm3 of volume of float should be present. Ammoniac squids have in this connection the appropriate shape - their bodies are very friable and delicate. According the supervision from underwater devices, these deep-water creatures are very inactive - they float reluctantly and usually hang in thickness of water, having stretched in sides their tentacles, expecting, when catch itself will stumble on them.
However the reef glider from seas of the future is an active predator; it is fast and dexterously swimming. In the book the size of this creature is simply called the seal-sized, that, but weight of this creature is precisely specified in film: it is more than one ton. It is easy to calculate, that from this weight the weight of float (not muscles, and an ammoniac solution) will contain about 700 kg. Subtracting weight of connecting tissues, isolating this float with poisonous contents from tissues of body, weight of digestive system, sexual glands, heart, nerve and blood systems and skin, we receive very insignificant size which muscles form. Certainly, in water the bulky body of the reef glider weighs practically nothing - pushing out force of water will counterbalance it. But the other problem is staying unanswered - resistance of water, which is many times higher, than in air. The reef glider has rather wide "physiognomy", therefore I risk to assert, that force of muscles of this animal will not suffice to move its body in thickness of water gathering big speed which is attributed to it by authors. Besides nudibranch molluscs already today have not skeleton in the least: they do not have shell. Therefore strong muscles of the reef glider simply will not have the reliable support, and efficiency of their work will fall. And formation of support like any gristly plate will demand increase of volume of the ammoniac float, which will pull follow itself the increase of the body size and frontal resistance, which will demand besides increase of force of muscles. Force of muscles lags a little behind increase of the linear size of the body - when the length of muscles is increased N times, their force increases proportionally to their section N2 time, but the volume and weight N3 times. And the big volume increases frontal resistance. Any "vicious circle is forming
It would be most logical to assume, that buoyancy of this animal is determined by the high contents of fat in body tissues (as at sharks and whales). It would give an animal much more benefit in comparison with variant of the ammoniac float: fat is an energy source, and the body becomes much more dense and more mobile. Besides fat is not poisonous and can be accumulated not only in isolated float but also can impregnate muscles, to accumulated in body cavity (at whales fat impregnates even skeleton bones). Some modern squids use this way, not losing their mobility.
The forest albatross: the ice breaker in desert from the point of view of evolution.
A series devoted to tropical rainforest of Antarctica of the future, perhaps,
is the most colorful in whole film. Violence of life of tropical forest is
shown skillfully. But the scientific side of this series, in my opinion, strongly
limps, and it is on its last leg.
Certainly, it is tempting to imagine the bird shooting at the enemy by hot poison. As there are birds using spittles to the enemy as the weapon. They are birds of order Procellariiformes - albatrosses, stormy petrels and others. At the case of danger they spit to the enemy jet of stinky fat liquid. It seems, a little bit of imagination - and yellow-orange dragon bird, shooting to huge insects by heated poison, is ready. But it is not so simple in this world.
Fire-breathing bird of Antarctica synthesizes its detonating mix of chemical substances received... from plants! A question: how the union of bird and tree, evolved up to such extreme degree, had began? The answer: earlier the bird had a certain interest to contents of flowers, which was not connected to synthesis of active explosive chemicals (The bird had not guessed what can be received from flowers! It is not intelligent and has no analytical thinking). And what, except for chemicals, can involve the bird in flower? Really the bird had put beak in flowers and licked their contents simply for the sake of idle interest, passion to experiments or with insuperable desire to help the certain tree to be pollinated? I think, no. For a bird (butterfly, beetle, bee, bat, possum, lemur) pollination of flowers is only collateral action. The flower interests them only as a source of the certain necessary substance for life - usually food, fine high-calorific nectar. And most likely, the plant in the beginning had acted so, supplying birds only by nectar. Then the part of collateral substances contained in nectar has began to be used in the process of synthesis of chemicals, and further process of evolution in preferences of birds has resulted in formation at the plant chemical Molotovs cocktail instead of nectar. It looks, everything is all right... Except for one fact.
What event had stimulated carnivorous birds of group Procellariiformes to pass to more problematic for digestion vegetative diet? You see Antarctica of the future has not lost coasts, they are still great (and even had became more, you see under ice of continent some latent islands, whose shore line summed is longer, than at modern ice cover). Birds of this group are specialized for feeding by sea food - from fishes up to plancton crustaceans and spineless animals. And their specialization can not turn back - it is the infringement of rule of the progressing specialization formulated by Ch. Deperet:
The group which has followed the way of specialization, as a rule, evolves by the way of progressing specialization.
I could imagine different descendants of modern Antarctic Procellariiformes:
small, similar to gulls, albatrosses catching river fish in the rivers of Antarctica
of the future; the stormy petrels being analogues of halcyons and water ouzels
(Cinclus), catching tiny fishes and insects in streams; stormy petrels and
mother Careys chicken with beaks similar to beak of Pterodaustro pterosaur,
catching crustaceans in mountain lakes and in salted lagoons of Antarctic tropics;
flightless stormy petrels similar to penguins and great auks - fishers at the
coast of Antarctica. All these birds are specialized variants of vertebrates
eating water animals. But I can not imagine a herbivore evolved from albatross
or the stormy petrel not because of absence of imagination. Simply it is possible
to turn process of evolution to the return side only in fantastic films.
I do not want to be groundless. There is presently a place on the Earth which can be shown as provisional model of relations of tropical forests of Antarctica and albatrosses not inhabiting them. This place is Hawaiian islands. Certainly, it is not the continent, but these islands are rather great to support not only one species of birds, especially small birds. Albatrosses, stormy petrels, mother Careys chicken meet and nest at Hawaii. But all of them are connected by their habit of life to the sea. Undoubtedly, that these birds had nested at Hawaiian islands before islands had become covered by magnificent rainforests. In general, they had been among first settlers of these islands. It means, they had a lot of time to adapt to inhabiting in formed forests of Hawaii. According this idea, ancestors of modern Hawaiian honeycreepers Drepanididae should meet significant competition from the part of forest descendants of albatrosses and stormy petrels and to not develop at all forests of Hawaiian islands. But no one albatross had become forest inhabitant despite of attracting affinity and free ecologically niches of the Hawaiian forests. Some water birds had developed ground biotopes of Hawaiian islands. They are modern nene, or Hawaiian goose (Branta sandvicensis) and extinct huge anserine birds known by their fossils. Is it the chance for them? No, because ducks and geese are herbivorous birds, as against albatrosses and their relatives. It is more easy for them to adapt to ground conditions of life and the food given by forest.
Differently, remarkable forest hummingbird albatrosses of Antarctica are the next absolutely unreal course of evolution which can remain only in our imagination.
The chimerical creature of the world of insects the falconfly.
Awful insect of the Antarctic tropics of 100 million years in the future is
the terrible predatory insect falconfly. The shape and habits of this insect
are rather furious. However the family tree of this monster appears the extremely
confusing from the point of view of the fact that both in the book, and in
film the ancestor of this animal, the sand wasp Ammophila from hymenopterans
order, is clearly named. We shall remember this fact, it will be useful to
If to look attentively to superb made photorealistic illustration (page 92) of the hexapod predator, the surprising feature will be found out: at the last segment of thorax, before an abdomen, two small tacks are visible. And they do not allow to make connection of relationship between the wasp Ammophila and falconfly. The matter is that from the point of view of biology these organs represent a pair of reduced wings - halters. And they are absolutely not characteristic for Hymenoptera, but are distinctive attributes of other order of insects - two-winged flies (Diptera) at which they serve for maintenance of balance in flight. The structure of wings of insects is very stable and important attribute which is essentially not varying during millions of years. Systematization of insects also is based on it, simply enough to recollect names of groups: Coleoptera (rigid wings, beetles), Hymenoptera (membraneous wings, wasps, bees, ants), Diptera (two wings, flies, mosquitoes), Lepidoptera (scaled wings, butterflies and moths), Trichoptera (hairy wings, caddis flies), Neuroptera (net wings), Strepsiptera (fan wings), Hemiptera (half(-divided) wings), Homoptera (equal wings), Orthoptera (strait wings, grasshoppers and locusts) ... The opportunity of transformation of back wings of the wasp to halters is absolutely unreal: wings of wasps are specialized in other direction - forward and back wing from each side are linked between itself by tiny hooks and work as a unit. Transition from the wing to halter is possible only from more primitive condition, when both wings are not linked. But evolution is irreversible: to become simpler up to an initial condition of an ancestor of insects covered wasps, hence, the back wing is not capable can not turn to halter too.
Hence, we will come to recognize, that the falconfly can not be the descendant of the wasp Ammophila and the representative of hymenopterans order. It is the two-winged insect according the structure of its wings. I shall explain for non-specialists that the difference between hymenopterans and dipterous insects is more, than between the cow and the horse.
But there is an objection against this conclusion, which monstrous falconfly carries on the head: its jaws. If according the structure of wings the falconfly is typical representative of Diptera, its jaw structure nevertheless shows in it the representative of hymenopterans. At all two-winged flies the mouth is specialized: at flies the lower lip has turned to licking pillow; everyone had convinced in this fact more than once, observing for the fly bossing on the piece of sugar. It waters food with saliva, and then dunks out by lip got broth (Have I spoiled appetite to anybody?). Jaws at the fly have disappeared practically completely. But at relatives of flies, horseflies, jaws were kept and also cut our skin when this creature attacks delicate non-sunburnt back of the summer resident gathering strawberry. The oral organs of the horsefly are cutting and licking: jaws only cut skin, and this creature sucks blood with the help of a lower lip (however, its sting did not become more pleasant after this information). And at mosquitoes the oral organs are sticking and sucking. I think, everyone had tested at itself its action. The proboscis of mosquito is not integral - it is combined by two pairs of very thin jaws in case formed by top and bottom lips (by the way, at the butterfly the proboscis is formed from the lower lip, and jaws at the majority of their species had disappeared absolutely). In other words, two-winged flies are experts of liquid food consuming.
And at the falconfly we see powerful gnawing jaws, capable to crush bones of unfortunate birds of Antarctic tropics which has fall to it for dinner. Also I think, that the most experienced reader of these lines will draw conclusions on relationship of the falconfly of the future with modern two-winged flies if I shall tell, that gnawing jaws are primitive by the structure. They meet at the most ancient by origin orders of insects on the Earth - cockroaches, beetles, orthopters (recollect grasshopper and locust), soothsayers. So, according the jaw structure the falconfly is not two-winged fly, though by the structure of wings it is the most typical representative of this order.
My former classmate has to found at this monstrous creature one more feature which at it simply can not be. In the book on the picture it is clearly visible, that on the end of falconflys abdomen cercuses stick up! These outgrowths are rudiments of abdominal extremities. They are characteristic for primitive insects. Such outgrowths are at cockroaches, soothsayers, grasshoppers. But they are not present at insects from progressive orders - butterflies, beetles, and also at hymenopterans and two-winged flies among which it is possible (?) to search for an ancestor of the falconfly. These cercuses could not appear at it the return to attributes of ancestors is impossible.
That is why this creature appears the chimera of the world of insects. And similarly to the most part of creatures shown in the project The Future is Wild, it passes from the category of real creatures to the category of the pseudo-scientific fantasy.
Illusive chance of cranes.
Creators of film The Future is Wild had very generously sown the devastation
in ranks of modern animals. So, it is underlined in the series Ice age warriors,
that all sea mammals had become extinct because of human activity. If human
had become so reckless, that it exterminates big and various groups of animals
standing at top of the evolution, what can we speak about ancient groups of
live creatures, whose "Golden Age" was finished, when man still had
not appeared on the Earth? One of such groups is the order Gruiformes among
birds. Cranes can not survive at intensive reforming-destructive activity
of people, because these birds are strongly subject to anthropogenous influence.
They can not survive in anthropogenous landscape, at strong anxiety, at destruction
of natural habitats. If according the idea of film sea mammal had become extinct,
cranes should die out with the even greater degree of probability. And if there
are no cranes - there should be no fine dark blue bird with wing-shaped legs.
There is one strangeness and in life features of big blue windwinger. It is known, that its ancestors, cranes, are nidifugous birds. Their chick hatches from eggs well advanced and quickly leaves nest. It actively studies to search for forage and fast becomes independent. But in film the fledgling sitting in the nest (already big and fledged), to which parents bring forage, is shown. It does not correspond to features of behavior of cranes and more resembles nidicolous birds: passerine birds, woodpeckers, owls, predatory birds and albatrosses. It is more logical to assume, that the nest of big dark blue windwinger will be in gorge, is closer to sources of forage (colonies of spiders) and in the zone of strong winds. Then the chick itself can search for food in colonies of silver spiders and will study to fly, using gorge as an original wind tunnel.
Poggle is it the declining of mammal history?
In film The Future is Wild professor Stephen Harris had advanced the strange
hypothesis that now mammals have not best times and in the future they inevitably
should disappear completely almost. Say it again, Prof. Stephen Harris! Especially
say it then, when you will exterminate mice and rats in the cellar, or drive
squirrels from garbage containers. Aussies seriously can contest the opinion
about the mammal degradation; it is especially concerning mice and rabbits.
So, in the serial The Crocodile Hunter zoologist Steve Irvin got from the
old equipment at the farm live mice by handfuls! And their neighbours the same
time as if the alive carpet had scurried under legs of the film crew. Also
think, who is in endangered condition - mice, or... people?
At mammals there will be greater future, than it is shown in film. In any way it is impossible to agree with words of Professor Stephen Harris that after 100 million years mammals will appear at the edge of extinction. They have already passed hard exam of survival rate during the evolution. More than 120 million years they were neighbours of dinosaurs, but had not died out, though they were obviously not at the top role in ecosystems of the Mesozoic Earth. And even during mass extinction at the end of the Cretaceous period they had survived, though they had some losses (some orders of Mesozoic mammals had become extinct together with dinosaurs). Why should they degrade in the future? There are no objective reasons for it. Certainly, such mammals as elephants and other large hoofed mammals, large predators like tigers and bears, highly specialized forms like anteaters and pandas, will be doomed for extinction at the change of conditions of habitat. Changes in circulation of ocean currents can put the mortal blow to populations of whales (according the amount of fossils, they hardly was not dyed out in Oligocene) and pinnipeds. But there are also those ones, who will pass through such accidents with minimal loss. At rodents, chiropters and insectivorous mammals the future is more perspective, rather than degeneration up to spider forage; they are remarkable by fast alternation of generations, fast distribution of favorable mutations, fast speciation. And in general, species and genera of mammals replaced each other surprisingly quickly while, for example, dinosaurs of Iguanodon genus trambled down the Earth about 75 million years (all Cenozoic era lasts about 65 million years), and the crustacean tadpole shrimp (Tryops), crawling and now in summer pools, is past about 300 million years. Therefore it is possible to assert, that at mammals there are huge reserves for adaptation even at mass extinctions of species.
Grass tree - the step child of bamboo.
If you tell lie - lie! Lie more expressive, with feeling and mood! I simply
can not say otherwise after final judgement of the series Silken assassins
The Future is Wild watched once again at the videorecorder of the film. It
had happened because sometimes I am such biting and meticulous spectator. And
once again I had recollect Russian proverb Not ever mouth will be covered
by shawl (it means, you will force to break off not every person, using brute
force). Well, I can not be silent!!! Im so angry...
So-called grass trees, submitted in film as descendants of bamboo, had seemed to me interesting object for criticism. And not curvature of trunks (there are now more curve trees on the Earth), but curvature of logic reasonings at the assumption of existence of such species of plants in the future had seemed to me so much strange. Apparently, the grass tree was created according the principle: let it will be so because it is simply very much pleasant to me. I can not pick up other explanation, and that is why. I have decided to read again the scientific literature devoted to bamboo, and had found out surprising things which should not appear at the process of evolution from bamboo to the grass tree. I had taken features of biology of the grass tree from film, and bamboo features - from books. Compare and draw conclusions:
Grass tree of the future
|Periodicity of flowering||Once a life, through big time intervals, extremely irregular (some species flower once per more than century), and after flowering (simultaneous at big territories) there is a mass dying off of plants.||Annually. It is a perennial plant.|
|Way of seed carrying.||Animals (seeds have thick shells, strong or soft and juicy); fruit is nut-like or berry-like.||Wind: seed is small with long fluffy parachute.|
If to estimate these attributes from the point of view of primitiveness and
specialization, it appears that the grass tree should not exist in general,
or should not be the descendant of the bamboo.
Regular annual flowering is a primitive attribute because many modern species of flowering plants breed so. Coniferous plants also give seeds each year many times per life. Thus, unitary flowering is the specialized attribute.
The majority of graminoids has seeds, transferable by animals or wind. And animals carry seeds not only in intestines, but also on the body. The bamboo has features of structure of fruits which are not present at any modern graminoids even in residual condition. Seeds of bamboo species have nut-like large fruits with firm covers, or berry-like fruits with juicy pulp. At the background of other graminoids with small seeds having thorns, "parachutes" and dry film of seed covers these attributes look specialized.
So to change from bamboo to the grass tree, evolution should literally go back, and at once two attributes should evolve from specialized condition to primitive! And it contradicts L. Dollos rule which says, that
The attributes lost by ancestors are not restored at descendants at their return to ancestral habit of life.
Hence, the grass tree appears only a result of imagination, and the food chain on the Australian-Kamchatka plateau becomes an illusive Mirage... By the way, lets speak about food chains.
One more interesting episode of this series is the food chain constructed
in film. Certainly, it is very tempting to imagine artful spiders had enthralled
fluffy small mammals with touching black eyes and use them as food, as any
aliens, colonizing the Earth. But if to count, how many benefits and losses
will turn out at such habit of feeding, there will be the surprising result.
If silver spiders eat only small mammals poggles, they should compensate all losses of energy for movement and protein expenses for spider web construction (spider silk by its structure is a protein, its producing depends directly on quality of feeding of spider) only due to feeding by small mammals. Hence, spiders should breed so huge herd of poggles that the accretion of these mammals must suffice for spider colony feeding, but thus breeding herd of poggles had to be kept. Otherwise the herd of mammals will decrease catastrophically and once last small mammals will be had eaten.
If to take into account, that only about 0,1 part of the eaten nutrients is using for weight increase (well, all right, at spiders this amount is more, because they are cool-blooded animals), it should to draw a conclusion, that the accretion of the poggle colony should be approximately ten times bigger, than the accretion of spider colony. It is necessary to sum here losses of spiders because of hunting of big birds windwingers, loss of web which is torn both by winds and hunting birds and which should be restored. Because it is impossible to count up directly the accretion of spider colony, losses of breaks of web and predating of birds, efficiency of digesting of poggle meat by spiders by virtue of that these species have not appeared yet (taking into account the remark concerning the biology of bamboo, I can tell with clear conscience, that they will never appear), conditionally we shall accept efficiency of developing (directed to direct accretion of biomass of bodies) of poggle fibers by spiders for 10 % (it is an average indice for modern ecosystems). Hence, at equal rate of accretion of biomass of spiders and mammals the biomass of fluffy spider cattle had to exceed ten times more than the biomass of eight-legged shepherds.
The seasonal prevalence of occurrence of forage for poggles, flying seeds, puts spiders to especially difficult conditions. Hence, during some summer weeks spiders should stock up the amount of seeds to feed mammals with them the whole year! If to purpose the time of fructification of grass trees as two months (for simplicity of calculation), to take into account, that fructification some time accrues, and at the end of season some time recesses, it is necessary to tell, that during the high season of tree fructification each day spiders should stock the quantity of forages approximately for one week! In Russian there is a proverb: the summer day feeds during the year. For spiders it should be correct to the full.
Taking into account inclement Alpine conditions, on the Australian-Kamchatka plateau, most likely, not so many grass trees will grow. Therefore colonies of silver spiders should be placed not so close, as it is shown in film. Otherwise they will compete with each other for food for the pets. And the number of huge dark blue birds will be enough insignificant, and their settling will be similar to settling of modern eagles in Europe: at the wide area the density of settlement of the species will not exceed one pair at some hundreds square kilometers of area.
But we shall return to our spiders and their domestic cattle. Certainly, in winter spiders most likely will fall to hibernation, and small mammals poggles can be awake due to their warm blood the whole year. The situation also is quite real, that they can leave spider colony, if they had stocked not enough seeds.
And now let's take for calculations any concrete figures and we shall occupy with arithmetic.
Let's imagine, that weight of small mammal poggle is 100 grams (as at golden, or Syrian hamster). Then larger silver spider covered with heavy shell will weigh, suppose, 300 grams as the average (young spiders will weigh less, queen is larger). We shall imagine number of colony of spiders as 500 individuals. Then their biomass will be:
0,3 (kg) ? 500 (ind.). = 150 kgs
Proceeding from previous reasoning, it is possible to calculate, that for one year the colony of such spiders will eat 1500 kg of meat of small mammals poggles. Taking into account, that the edible part of mammal will make about 50% of its weight, spiders should hunt and use for food 3 tons of poggles (in recalculation to their weight as a whole). If to assume, that for one year the livestock of poggles is even doubled (in view of all losses to extreme conditions, illnesses, stresses, predators, cannibalism, trampled cubs, bad parents and simply run away and lost mammals) spiders constantly should contain also breeding colony of poggles weighting 3 tons! Because poggle is tiny gluttonous warm-blooded small mammal with a vigorous metabolism, it devours and spoils huge amount of forage: for day the amount, about equal to its body weight (People have keeping hamster or mouse know as far as they are gluttonous and prodigal). That is for day the colony of small mammals completely dependent on spiders, should eat 3 tons of seeds. Hence, for one year this colony will devour about 1100 tons of seeds! If in the summer mammals can graze grass for the sake of ration variety and eat less forage, in the winter cold conditions their appetites sharply grow, therefore it is possible to count, that at the average for one year such amount of grain will be eaten (or spoiled, becoming unsuitable for food).
Taking into account, that this amount of seeds should be gathered during 2 summer months, we receive norms of day time manufacture for a colony of spiders:
1100 : 60 = 18,34 tons of seeds per day.
If to assume, that in colony from 500 spiders there are 300 workers (weighting 300 grams everyone), we receive day time performance standard for one spider:
18,34 : 300 = 61,13 kg of seeds per day!
Whether can it work so? I think, at such rates of work updating of the colony should pass faster, than for one year! Horses die because of work, as it is known,! If to take into account also the small size of flying seeds of grass trees, it appears, that expenses of energy for carry of seeds from web up to crevice in rocks will be more, than the energy received by spider from small poggle, well-fed by these seeds. After such calculations, certainly, it is possible to begin to hate mathematics, but such picture turns out according all calculations.
Taking into account the winter fodder shortage and the large size of spiders, the attack of small poggles to sleeping spiders is also probable rodents are partly zoophagous ones, willingly including insects and spiders to ration. Therefore terrible eight-legged enslavers of big-eyed fluffies risk fall to them into dinner in winter.
The idea of connection of spiders and mammals poggles at the hormonal level has interestingly told in the book. Hormones are good and necessary substances. But I am afraid, that in those image as it is submitted by founders of film and the book, it simply does not exist. In film doctor Leticia Aviles tries to present to film watchers, that this connection is real, but she recognizes, that spiders of the future can not change the physiology and still remain practically the same spiders know today. But there are two questions which I would like to know the answer:
Whether will hormones of vertebrate animal have the influence to the spider the same kind as to the vertebrate? Between spiders and vertebrate animals there is the enormous evolutionary precipice: their ancestors had dispatched still in pre-Cambrian epoch, when animals had divided to Protostomata (to which arthropods (including spiders) concern) and Deuterostomata (to which all vertebrates concern). And hormones are complex substances of mainly protein nature differing by some specificity. Taking into account an enormous difference in physiology of spider and mammal, I can assert, that the hormone of mammal does not render due action to the spider (sexual hormones of animals will not stimulate spiders to breed). Besides such important part of life cycle as breeding, as small as possible must depend on this rather delicate interaction with other species. Therefore formation of such dependence during the evolution I think unreal thing.
Whether will hormones operate, if to eat them? The doctor, making treatment by hormonal preparations, makes to the patient the injection directly in blood and tissues. And what will happen with hormones getting into the body through the stomach? I think, the same, as with other proteins: they will be digested and do not render any action. Gastric juice at once will digest them and will disturb the structure of molecule on which action of substance of protein nature substantially depends. Spiders had not invented syringe and are not able to make whey of poggle blood for an injection to the queen female that she could give posterity.
It is really, after such calculations it is easier to me to imagine, as silver spiders catch in web and devour huge dark blue birds, and small mammals poggles live free from spider yoke under roots of grass trees somewhere in warm valleys. And what the dark blue bird will do on this plateau - I shall not mind it: there is nothing to entice it there.
Such ideas were cast to me with this series of interesting, but in many respects very far from a science film... I think, I had stated them enough clearly and accessibly to understanding. If to construct the rating of unreality, this series of film and the chapter of the book simply should excel all other ones, taken together.