Polar Bears:
Habitat: discrete circumpolar areas of seasonal ice formation and favorable habitat for denning; 19 populations ranging across Wrangel Island and western Alaska, northern Alaska, the Canadian Arctic and Hudson Bay, Greenland, Svalbard-Franz Josef Land, and central Siberia
Behavior/Rhythm: solitary except when scavenging or at play; inactive two-thirds of the time, either sleeping, lying, or awaiting a kill; females hibernate prior to giving birth; others hibernate only during periods of extreme weather
Feeding: carnivorous; seals are its primary prey, especially ringed seals; eats smaller mammals and fish, and scavenges carrion of walruses and whales; prefers high-caloric blubber to meat; though polar bears eat summer vegetation while on land, they derive little nutrition from it
Breeding: after mating season from March to June, females retire in late fall to dens dug out of snow, on the pack ice, or on permafrost a few miles from the coast; delayed implantatio......
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