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Polar Bear

(Ursus maritimus)

Life span
15-20 years
The body length of the polar bear is 2-2.5m and weigh 272-499kg.
Physical Appearance
Polar bears are large and stocky with hind limbs that are longer than the forelimbs. They have large feet that act as snowshoes, and they are covered with dense fur, which is water-repellent, enabling them to shake dry after swimming.
Polar bears inhabit the north coast of Alaska and Canada.
Polar bears spend most of their time on Arctic ice floes, and when they are on the shore they remain near the water.
Polar bears are predominantly carnivorous, and feed on seals, fish, seabirds, and reindeer. They will eat berries and various other vegetation in the summer months.
Social organization and behavior
Polar bears are usually solitary, except during the breeding season (midsummer), although they will sometimes aggregate to feed on large whale carcasses.
Polar bears have a gestation period of 9 months and a litter size of 1-4 cubs.
Polar bears are not endangered, although they are hunted for meat and fur. Oil spills from drilling platforms or tankers are a potential threat.
Polar bears are strong swimmers and have many adaptations for an aquatic environment - they are well insulated with fat, their nostrils close and their ears are held close to their head when underwater. They will also roam large distances.