Do polar bears adapt

Answer 1

Polar bears normally live in extremely cold environment .They have fur with hollow bristles to insulate and trap warm air to protect themselves from external freezing low temperature and preserve the body heat. They also have thick layer of fat under their skin.

With any change in their habitat to a warm region they will either shed their fur bristles or may not be able to adapt the changed habitat and perish.
better to ask how did the ancestors of polar bears adapt.

1) a rapid but graduated change of fur color

2) extra size

3) most don't hibernate and are active looking for food all year round

females feast before denning but hibernating would reduce body temperature (seasonal changes awaken black bears)

4) they are able to alter metabolic rates during times of food scarcity (black bears too can do this but will have times when food is plentiful an hibernate for another period of the year)

5) bear eat a wide verity of food and are prepared to roam for it. Polar bears subsist mainly on mammals (but will eat vegetation during periods of the year when able to access tundra)
warm water proof fur that traps heat

white camofluage that helps them camofluage in the snow big teeth to eat snow things

Answer 2

Polar Bears have adapted to their current climate, but if you aresuggesting rehabilitation into the North American mainland, or warmer parts of the continent, the Polar Bears would refuse to eat any animals (this is because they are adapted to caribou, moose, elk, seal, and puffin) and die, or die from overheating.
Yes they are. Their feet have thick hair to prevent themselves from slipping

They have thick layer of fat to keep themselves warm

They have small ears to prevent heat loss

Answer 3

The polar bear has white fur this can be different shades of white but their skin is black to help absorb as much heat as possible. They really have two coats of fur, as many cats and dogs do. One is the longer outside coat that is thick, long and guards the undercoat, which lies against the skin, is almost colourless, soft, and fuzzy and short. The Polar bear also has a thick layer of blubber, anywhere from one inch to four and a half inches thick depending on the time of year and the bear's health. They have tiny ears and tails, which helps cut down on heat loss. They are known for their massive paws, measures up to a foot across. These help them swim, walk on thin ice, and have better traction. Their sense of smell is reported to be amazing; they can smell a seal at 20 miles! Also their eyesight is especially adapted for underwater, and their body is streamlined for swimming. They don't have the shoulder hump. They can run up to four to six miles per hour.Polar bears inhabit arctic sea ice, water, islands, and continental Coastlines.Polar bears prefer sea ice habitat with leads and polynyas, next to continental coastlines or islands.

Answer 4

Polar Bears survive in the arctic with their extra layer of fat.
Their skin is actually black, under their white fur, to help keep in the warmth from the sun. They have short but sharp claws, and pads on their feet to help them keep a good grip on the arctic ice. They also have layers of blubber (fat) to keep them warm in the freezing environment.

Answer 5

Adaptation takes time, and is constrained by the physical attributes and needs of each animal, based on it's evolution. Polar bears are specialists, and all specialists are so adapted to their small niche that it takes a long time under the right conditions for them to survive a change. Polar bears adapted over generations to live in the far north, and in doing so they became all white, great swimmers, and capable of long periods without food. However, they also became more carnivorous than any other bear, and specialized on hunting seals and other marine life off ice. They can't swim fast enough to catch them without ice, they hunt them mainly as they come up holes in the ice to breathe, or when mothers and seal pups are on ice but under snow. There isn't sufficient foot for them on land - they can't run fast enough to kill caribou and can't get enough calories from plants to survive. They don't know what is happening to their ice, all they know is that food is scarce. They might try to kill any animal they can catch, but there isn't much else they can catch often enough to survive if the ice they use to hunt marine mammals is gone. Over time, if the ice continues to melt and they lose their habitats, they will go exinct, it's happening too fast to adapt. It's possible that as climate changes and habitats shift, brown bears will expand their range north and some will interbreed with polar bears. If their offspring survive, some polar bear genes will remain, but the species will be gone.

Answer 6

Blubber and a thick fur coat helps keep the polar bear warm.

Answer 7

It stores Heat inside of its fur. Although sometimes it doesn't work. Polar Bears are made for Antarctic environments.

Answer 8

the adapt in the winter when there is snow they blend in to the snow this helps them hunt.

Answer 9

The coloring of the polar bears helps camouflage themselves for hunting.