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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).
When polar bears have sea ice, they feast on seals. Not just the seals, but their fat. About 70% of the polar bear diet while on ice is fat, said study co-author Karyn Rode, a USGS wildlife biologist. “They have the highest fat content diet of any species in the world,” Rode said.
Ringed seal and bearded seal are the most crucial aspect of an Inuit diet and is often the largest part of an Inuit hunter's diet. [3] Land mammals such as reindeer (caribou), polar bear, and muskox; Birds and their eggs; Saltwater and freshwater fish including sculpin, Arctic cod, Arctic char, capelin and lake trout.
Polar bears are classified as carnivores, both taxonomically (they are in the order Carnivora), and behaviorally (they subsist on a largely carnivorous diet). Depending on the species of bear, there is generally a preference for one class of food, as plants and animals are digested differently.
The list of animals that polar bears consider prey is long, but up until recently it wasn't known to include white-beaked dolphins. A team of scientists working in icy Svalbard, Norway in 2014 ...
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There are 20 known sub-populations of polar bears across the Arctic. This is one of the most southerly and best studied. "They're our fat, white, hairy canaries in the coal mine," Alyssa explains.
Ursus is a genus in the family Ursidae that includes the widely distributed brown bear, [3] the polar bear, [4] the American black bear, and the Asian black bear. The name is derived from the Latin ursus, meaning bear. [5] [6]