How hibernation protect animals?

Answer:
It doesn't "protect" them. Hibernation is a state similar to a computers Standby mode, which means they only use up very little energy. That is necessary because in winter many mammals wouldn't find food and if they wouldn't hibernate they would starve to death. Hibernation works by eating up what you could call an energy pack made of fats. One could say the fat also "protects" them from the ice cold winter.
Contributor: MrMehawk
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