how does the polar bear survive in the cold arctic region?

Answer 1

They are well adapted! Polar bears are perfectly adapted to survive in the harsh conditions of the Arctic, where winter temperatures can plunge to -45° C (-50° F). Two layers of fur provide the bears with such good insulation that they experience almost no heat loss. In addition, they are protected with a layer of blubber that can measure 11.5 cm (4.5 inches) thick. Compact ears and a small tail also prevent heat loss.
Polar bears are so well protected from the cold that they have more problems with overheating than they do from the cold. Even in very cold weather, they quickly overheat when they try to run.
Other adaptations include small bumps called papillae that keep their feet from slipping on ice; strong, powerful claws that enable them to catch seals; and a nose powerful enough to detect prey that is miles away.

Answer 2

1) They're enormous! 550 to 1,700 pounds, 8 to 10 feet tall.
2) They have two layers of fur that acts as insulation so that they experience almost no heat loss.
3) They layer of blubber that can measure 4.5 inches, which also acts as insulation.
4) Also, contrary to popular belief, polar bears do not have white fur. Each hair is actually translucent tube that directs the sun light to the polar bears black skin.

Answer 3

only at present in evolutionary time have bears adapted to existence on arctic seas, yet those tremendous creatures have mastered the water and ice surroundings superbly. over the years they developed a luxuriant white coat and layer of blubber for camouflage and warm temperature. Oversize ft function paddles for huge swimming and spread their weight, helping this greatest of modern carnivores (excepting Orcas) to traverse ice too skinny to help someone. in the course of the Ice Age, seals adapted to existence in icy northern seas. Their favor to respire and reproduce on the outdoors placed a wealthy year-round foodstuff source interior attain of a inhabitants of brown bears that began to stay further and extra out on the ice. organic determination well-known those bears acceptable able to seize seals, and they grew to develop into extra thoroughly carnivorous than different bears. by using 1 hundred,000 years in the past they'd developed into some thing like the polar undergo of on the prompt. besides the actuality that polar and brown bears now seem and act rather in yet differently, their genetic closeness is tested by using matings in zoos that produce fertile offspring. Polar bears' variety is circumpolar. some were noted on the point of the pole, yet heavy perennial ice there delivers undesirable seal searching, so maximum are stumbled on further south the position the ice is thinner and a lot less non-stop. earlier it changed into believed that polar bears migrated freely all in the course of the Arctic, yet modern analyze signifies that there are surely countless extra or a lot less diverse populations. Russian and American are investigating the threat that Beringian bears include a unmarried team which for the time of wintry climate is disbursed from Wrangel Island south alongside the Asian coast and interior the crucial Bering Sea as far as St. Mathew Island. In summer season, those wintering interior the Bering Sea go back to the north with the retreat of %. ice. Beringian bears seldom mingle with yet another inhabitants stumbled on interior the Beaufort Sea east of Pt. Barrow, Alaska. In 1981 the IUCN Polar undergo professional team agreed that the international inhabitants changed into between 20,000 and 40,000. As of 1988 the most in many situations going on estimate for the Alaska populations changed into 3,000-5,000.

Answer 4

The polar bear was created for those conditions. Stick him in the tropics and he may die of overheating.

Answer 5

Evolution.

Answer 6

they have black skin and their hair is hollow.
so Like a fiber optic cable sunlight is collected and sent to that black skin.
also the hollow hair acts as a great insulator!

Answer 7

it is adapted to it's enviroment

Answer 8

Fat, fur and hybernation.