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The polar bear (Ursus maritimus) is a large bear native to the Arctic and nearby areas. It is closely related to the brown bear, and the two species can interbreed.The polar bear is the largest extant species of bear and land carnivore, with adult males weighing 300–800 kg (660–1,760 lb).
This food source impacts the health of polar bears negatively. They also begin targeting unusual animals as prey. [45] [46] The Arctic National Wildlife Refuge is the only refuge that regularly dens polar bears in that local region, and contains the most consistent number of polar bears in the area. [citation needed]
Arctic fox, polar bear, caribou% [1] The Canadian Arctic tundra is a biogeographic designation for Northern Canada 's terrain generally lying north of the tree line or boreal forest , [ 2 ] [ 3 ] [ 4 ] that corresponds with the Scandinavian Alpine tundra to the east and the Siberian Arctic tundra to the west inside the circumpolar tundra belt ...
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Pipaluk, a male polar bear, was the first male polar bear born in captivity in Britain, and, like Brumas, became a major celebrity at Regent's Park Zoo in London during early 1968. His name came from an Inuit term meaning "little one". Pipaluk was moved from London to Poland in 1985 when the Mappin Terraces, which housed the bears, was closed.
The key danger for polar bears posed by the effects of climate change is malnutrition or starvation due to habitat loss.Polar bears hunt seals from a platform of sea ice. Rising temperatures cause the sea ice to melt earlier in the year, driving the bears to shore before they have built sufficient fat reserves to survive the period of scarce food in the late summer and early fall.
Throughout most of its range, seals use ice as a location for resting, pupping, and molting. Currently there is no specified critical habitat for the ringed seal. There is a proposed map [5] for the critical habitat as of March 2019. The Endangered Species Act requires designation of a critical habitat for species within one year of listing.