Привет!
1. Bears, unlike dogs or cats during walking does not rely on toes, but on the whole foot. This feature allows them to walk on their hind legs.
2. Paws white bears are much broader than those of other bears. This feature allows it and not sink into the snow on the ground, in the water and paddled them as flippers.
3. All bears have 2 layers of wool. First - undercoat - retains heat, while the second layer protects from water.
4. The polar bear has a very large stomach. He holds a nearly 70 kg of meat!