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Paleontologists now dig down fossil evidence to support this strange idea. Early as 50 million years ago, they found bodies of legged whales. Whales come from land mammals and gradually adapt to living in the water. Their forelimbs became flipper and the hind legs disappeared. They seem to resemble fish, but they are still mammals. They still make milk to take care of the young people. They breathe through their noses. And it became pores
A whale is a mammal Like ours, their ancestors were walking along the land as much as 50 million years ago. It is not clear what these animals look like, but some paleontologists think they may be hooves like mammals like modern cows. Other paleontologists believe that whales are like modern wolves. Millions of years, ancient creatures have spent more and more time in the water. Some live on land, and others live in the sea like modern sea lions and otters. After all, these creatures no longer climb the land and they slowly lost their useless legs and fur. The evidence of this hypothesis is amazing: paleontologists have even found fossil-like creatures with small feet that could not support the weight of animals.
48 million years ago, cocci of the Porocetidae family had wide frontal bones, wide eyes, hollow jaws and huge ear bones. The reason these creatures are interested is that their four tibial vertebrae are not fused and that the power of the tail permits swimming. Therefore, these whales walk on the ground with four legs, but swim underwater with wavy up and down tails. Since animals still drink fresh water, they are forced to stay near rivers and lakes. This creature is also very poor in the water and is too clumsy to kill it at any efficiency so it will be hidden in the flock until the prey swims up to the barbs