Why Do Bears Hibernate?

Answer

Bears hibernate so as to bypass winter which results in the disappearance of their food supply. They usually have a hard time finding food during winter and therefore cuddle up in caves to stay safe from the dangers of this harsh weather.
Q&A Related to "Why Do Bears Hibernate"
Most species of bears (but not pandas) will hibernate during the winter because their food supply decreases during that time. If they were active in colder weather, they would need
http://wiki.answers.com/Q/Why_do_bears_hibernate
Bears hibernate because their natural food source is limited during the
http://www.chacha.com/question/why-do-bears-hibern...
Prior to the hibernation season, Grizzly bears spend their summers eating both plants and animals. Since they won't eat or drink while they sleep, they need to store a large amount
http://www.ehow.com/facts_7208160_long-do-grizzly-...
To keep themselves healthy and to do away with the harmful effects of the winter season.
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2 Additional Answers
Bears hibernate because they need to stay warm and healthy during the long winter months. Food is scarce for bears in the winter, so they stock up on their food supply before going into hibernation.
Bears will usually go into hibernation when their food sources are scarce due to the coldness of winter. They will eat and build up body fat so they can sleep through the worst parts of winter.
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