The Nature Of The Polar Bear

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The scientific name for the polar bear is Ursus maritimus. However, it has many other names as well, such as sea bear, ice bear, lord of the Arctic, and old man in the fur cloak. Despite all the different names, one thing is for sure, the polar bear’s body has been constructed perfectly to deal with the seasonal shifts in the Arctic. The fur of a polar bear acts as a dense insulator, preventing almost all heat loss. In fact, adult males can overheat from running. The fur is transparent with a hollow core that scatters and reflects visible light, making it appear white, just like what happens with snow and ice. The skin of a polar bear is black, and it covers up a layer of fat that can be up to 4.49 inches thick. This thick layer of fat helps keep the polar bear warm in the water, since wet fur acts as a poor insulator. The polar bear’s small round ears and short, compact tail also help conserve heat. Their large paws, approximately 11.81 inches across, are covered with papillae which help from slipping on ice. To complete the challenge of crossing thin ice, the polar bear extends its legs far apart while lowering its body to distribute its weight evenly. This action helps it survive on its home range of sea ice, which can be quite large, expanding far greater than any other species of bear. A polar bear’s home range depends on both habitat quality and prey availability. Polar bears mainly depend on seals for their high-fat content and can eat 100 pounds of blubber

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