1. Polar Bears Resort to Cannibalism as Arctic Ice Shrinks
Normally, polar bears feed primarily on ringed seals and use sea ice for basic functions like feeding, mating and giving birth. ... In the wild, polar bears do kill each other for population regulation, to exert their dominance, and to gain reproductive advantage. ... Geological Survey Alaska Science Center, says that "During the 24 years of research on polar bears in the southern Beaufort Sea region of northern Alaska and 34 years in northwestern Canada, we have not seen other incidents of polar bears stalking, killing and eating other polar bears." Environmentalists believe that the sh...
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