So they can lock in heat in the cold winter surroundings and they can stay warm during hibernation.
Polar bears eat seals, and seals are found in the sea.
They spend there life in the north pole.
Polar bears spend the winters on the ice, hunting seals. When summer comes along, much of the ice melts so the bears have to go elsewhere.
Polar bears and walruses. Also, whales spend some of their time there.
Polar bears live on the shore line until ice forms on the sea. Then they travel out to the edge of the ice to hunt for seals. (Except the pregnant females, who spend the winter in hibernation.)
No, polar bears are adapted to living in the northern polar region, the Arctic, where they spend much of their time hunting seals on the sea ice. They might survive in Antarctic Desert but they are not native to that continent.
There is no evidence that they have adapted. Polar bears now have to spend more time on land, during the lengthening summers, where they can no longer hunt for seals, their main food source. There are reports that they are competing with land bears for food, with little success.
There are rare cases of adult male polar bears eating young bears. Polar bears are NOT the same as black or grizzly bears - those species are known to kill cubs in an effort to send the female back into heat in order to mate. This is called infanticide and this behaviour has not been observed in polar bears. If an adult polar bear kills a cub it is most likely cannibalism, driven by desperate hunger. Due to rapidly shrinking Arctic sea ice, polar bears don't get to spend as much time on the ice hunting their primary source of food: seals. So if polar bears are stuck on land for longer periods of time, they may become more desperate for food sources.
There may be no polar bears where you live because it is not cold enough for them to live there. But there ARE polar bears in this world, you just have to head to the far north (i.e., Churchill, Manitoba, Canada) in order to see them in their natural habitat. Or, just go to a zoo that has them.
Polar bears are only found in the Northern Arctic lands. One population of bears in western Hudson Bay, in Canada, is finding the sea ice, where they trap seals for food, is melting earlier in summer and freezing later, so they have to spend longer and hungrier summers on land where there is no food that they can catch. This is affecting the health and weight of female bears, which are having fewer cubs.
Most polar bears spend time out on the frozen Arctic ice flows hunting seals. The Arctic a dessert.
No. The polar bear is a land carnivore, although some people think of it as a sea mammal, simply because it spends a lot of time in the water.