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Polar bears present a mixed bag of responses to winter ... a female polar bear makes a den in which to give birth and then take care of her cubs, other polar bears remain active throughout the whole year. Interestingly some polar bears enter a state which is known as walking hibernation.
As the Arctic winter lasts almost half the year, hibernating for the whole winter becomes problematic - they would starve to death even with the reduced energy demand during hibernation. All of the options require that the bears fatten up when the hunting is good. They do this during the spring. summer and fall.

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8y ago

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