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Sagot :
Polar bears roam the Arctic ice and swim towards the coastal areas . They are very strong swimmers who use their front legs to polar impulsarse.oso have been polar bears were seen swimming very far at sea. Most likely, the route section should do mounted on giant pieces of ice.Polar bears live in one of the coldest places , and therefore depend on their fur that covers their entire body, and is composed of fat that insulates body heat and thus prevents freezing. The fur will grow up in the legs , which also facilitates the grip is slippery ice. Another important function of the fur is camouflage that this offers in the snow, because of the color white . But under their white fur , his skin is black, to better absorb sunlight when available .These predators tend to feed on marine animals. Use the areas where the ice is broken , as the animals come out these holes to breathe . If there is any chance , bear no polarduda bear eating corpses he not hunted, like a great whale . The polar bear is in the top of the food chain in the area where you live , so it has no natural enemy. The females have their young in holes to protect them from the elements of nature. After 28 months with the mother, have learned survival tactics . Bears are solitary animals , and males may even kill young of their own species .
Conclusion
Los osos polares son muy atractivos, pero son poderosos depredadores, y no temen a los humanos. Cerca de asentamientos humanos, estos suelen escarbar en la basura.
Conclusion
Los osos polares son muy atractivos, pero son poderosos depredadores, y no temen a los humanos. Cerca de asentamientos humanos, estos suelen escarbar en la basura.
The polar bear (Ursus maritimus) is a hypercarnivorous bear whose native range lies largely within the Arctic Circle, encompassing the Arctic Ocean, its surrounding seas and surrounding land masses. It is a large bear, approximately the same size as the omnivorous Kodiak bear (Ursus arctos middendorffi).[5] A boar (adult male) weighs around 350–700 kg (772–1,543 lb),[6] while a sow (adult female) is about half that size. Although it is the sister species of the brown bear,[7] 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 seals, which make up most of its diet.[8] Although most polar bears are born on land, they spend most of their time on the sea ice. Their scientific name means "maritime bear" and derives from this fact. Polar bears hunt their preferred food of seals from the edge of sea ice, often living off fat reserves when no sea ice is present. Because of their dependence on the sea ice, polar bears are classified as marine mammals.[9]
Because of expected habitat loss caused by climate change, the polar bear is classified as a vulnerable species, and at least three of the nineteen polar bear subpopulations are currently in decline.[10] However, at least two of the nineteen subpopulations are currently increasing, while another six are considered stable.[11] 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.[12] For thousands of years, the polar bear has been a key figure in the material, spiritual, and cultural life of circumpolar peoples, and polar bears remain important in their cultures. Historically, the polar bear has also been known as the white bear.[13]
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