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The polar bear (Ursus maritimus) is a bear native largely within the Arctic Circle encompassing the Arctic Ocean, its surrounding seas and surrounding land masses. It is the world's largest land carnivore and also the largest bear, together with the omnivorous Kodiak Bear, which is approximately the same size. An adult male weighs around 350–680 kg (770–1,500 lb), while an adult female is about half that size. Although it is closely related to thebrown bear, it has evolved to occupy a narrower ecological niche, with many body characteristics adapted for cold temperatures, for moving across snow, ice, and open water, and for hunting the seals which make up most of its diet.Although most polar bears are born on land, they spend most of their time at sea. Their scientific name means "maritime bear", and derives from this fact. Polar bears can hunt consistently only from sea ice, which is why they spend much of the year on and near the edge of the frozen sea.
The polar bear is classified as a vulnerable species, with eight of the 19 polar bear subpopulations in decline. For decades, large scale hunting raised international concern for the future of the species but populations rebounded after controls and quotas began to take effect.
For thousands of years, the polar bear has been a key figure in the material, spiritual, and cultural life of Arcticindigenous peoples, and the hunting of polar bears remains important in their cultures
Tags : IUCN Red List vulnerable species Polar bears Animals described in 1774 Bears Fauna of Greenland Fauna of the Arctic Inuit culture Mammals of Asia Mammals of Canada Mammals of Europe Mammals of the Arctic Mammals of the United StCategory : reserved to connected users | Write a comment | Print
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