Humans can survive around 20 days without any food. When hibernating, bears go more than 100 days without any food or water, and lose 10%-13% of their total body weight. LEARN MORE:
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Key Facts In This Video
Hibernation is different for each species of animal. 00:54
Bears don't urinate, eat or drink during hibernation. 01:46
A black bear's body temperature and heart rate both decrease significantly during extended periods of rest and inactivity. 02:19