The evolution

At the time, as some species actively evolved over millions of years, the other for some reason, remained in its original form and a representative of the so-called "living fossil" is invaluable, because it allows scientists to ever corner of his eye to look into the distant past.

Living Fossil

The evolution

The most striking example of a "living fossil" coelacanth, belongs to a group Crossopterygii, considered the ancestor of the first terrestrial vertebrates and the number of extinct 70 million years ago, while in 1938 in South Africa was not accidental izlovlen zhivohonky instance, turned out to be deep-resident, which go to the land is not even going. Some scientists logical state that if the animal has not changed in appearance, it does not mean that it has not evolved, others think that animals simply could not afford not to pursue the processes of evolution, because living in a comfortable environment, and others are diagnosed with "bratideliya" - the slow pace of evolution.

The Descent of Man

The evolution

Where is your homeland, man? Until recently, all textbooks of ancient history cited the traditional hypothesis that, due to climate change only a paradise for primates was East Africa, which became the ancestral home of the ancestors of homo. European paleontologists study of tooth and jaw found on the territory of Bulgaria and Greece, and two belonged hominin, is credited with the honor of the Mediterranean. Their Chinese counterparts, have found in the South China remains, do not deny that East Asia may be relevant to unraveling the origin of mankind.

The reasons bipedia

The evolution

Regarding the emergence of bipedal locomotion put forward a great many hypotheses. Some believe that it was necessary for the liberation of the hands, which in turn was necessary for the manufacture of guns and carrying the products, and generally gave the man a number of important advantages; others again accuse the climate has changed and the need rise above the tall grass and explore the area. Answers to these questions are known only chimpanzees, but they prudently silent.

Contact evolution of cetaceans

The evolution

All the living, on the theory of evolution, came out of the water and without water can not exist. When all the normal animals went ashore and began to slowly evolve into a human, the whales for some reason, rushed into the water, and now these giant warm-blooded mammals adapted to life in water, but air-breathing, and having a well-developed brain, do not give rest to scientists his antics.

Background origin of speech

The evolution

The most slippery topic of discussion among scientists considered the origin and the origin of human speech - too much room for imagination in the absence of any data. What came first, the thinking which led to the need to communicate, or thinking has become a product of the language? Some argue that the language originated from the sounds and gestures of primates, others associate the invention of words exclusively with brain development and have demonstrated the ability to onomatopoeia. And if you ask linguists, all of them will tell you that all the ancient languages ​​is much more complicated and confusing modern counterparts, the problem will seem even more intractable.

The loss of hair

The evolution

When and how our ancestors lost their cozy fur coat - another mystery that besets the brain evolutionist. Perhaps the blame back climate change, or once pralyudi in whale imitation became a lot to swim and dive, losing valuable fur and acquiring instead subcutaneous fat, or is it a result of spontaneous mutations and modern primates believe people monkeys sphinx, or unequal struggle with parasites has led to loss of hair, but the increased brain guessed create clothes.

Size Matters

The evolution

It is well established that the size of the human brain 2 million years ago, no more than the chimpanzee brain size. known then for some reason, he began to grow in size, reaching a current level of about 160 thousand years ago. A very rare case, but all scientists agree among themselves that the big brain gave a huge advantage to the rest of anthropoid animal world, but what caused the overgrowth of the body and why it - is unknown.

The female orgasm - an inexplicable phenomenon for science

The evolution

It is undesirable complication for fans of the theory of evolution has been scientifically confirmed in 1982 the existence of the female orgasm, which is not only that fertilization does not matter, so do not even always related to sex. Since the presence of orgasm may boast, not all of the fair sex, many evolutionists have called him a throwback, a useless rudimentary functions, triggers ovulation in response to the pairing in the distant past, but it has lost its purpose.

Abiogenesis

The evolution

If you fancy evolutionists still missing out on the description of the processes of life, when it comes to the origin of life itself, they modestly silent. In this impasse, and there was the theory of the origin of life from non-natural way. For a long time it was thought that spontaneously arise from the mud frogs in bags of grain - the mouse, and over a glass of wine - flies. Over time, the absurdity of these claims was recognized. Despite many years of research and close cooperation between the various fields of science, biologists, chemists, geophysicists, the most important existential question "How it all began?" Remains open.

Archeopteryx

The evolution

Discovered in 1861, shortly after the publication of Darwin's "Origin of Species" Archeopteryx was immediately declared an intermediate form, the absence of which so grieved author, between reptiles and birds. In a hundred years the scandal broke, and the find was declared a forgery, but the reputation praptitsy resisted, and for a long time it was considered a miracle in the feathers of the real first bird on earth. However, recent studies have recognized raptor feathers, because of which he was named the bird does not look like a bird. Moreover, many found other flying relatives of Archeopteryx, which were much older than his ancestor.

Snakes

The evolution

No sooner had the flying lizards regain its position in the fossil record, as in the sediments were found reptile with reduced limbs. Some believe that the snakes were going to live in the water and therefore rejected their hind legs, others - that were lost limbs to keep digging way of life, although it would seem, burrow convenient paws.

The giant panda

The evolution

This is either a giant raccoon, or bear (scientists are not precisely defined) defies the whole theory of evolution and the theory of natural selection in particular. How does an animal that adheres exclusively vegetarian diet and is not interested in having sex with their own kind, which only eats and makes defecation, it has managed to survive to the present day? This cute little animals the idea of ​​natural selection is completely alien.

The elephants without tusks

The evolution

Homo sapiens could not cope with the problem of the destruction of the population of elephants by poachers hunting for its tusks these huge animals, elephants and decided to seek a solution to their own way of getting rid of such a dangerous attribute: more and more frequently, even among African elephants born bezbivnevye cubs. Evolutionists rejoice: here it is, evolution in action. But only time will tell what impact the absence of the tusks of an elephant's ability to produce food or to defend themselves from predators besides humans.