bears kind of do but they get up several times for a few hours from what I understand. Some others do hibernate all winter.
Yes, it's called hibernation. It is a way for some animals to adjust to the cold temperatures. Hibernation results in a lowered body temperature and deep sleep.
True hibernating animals do not cache food in their dens or caves and wake up to eat it - so, that means that I am not a true hibernator! LOL Bears wake up and move around so they are probably not true hibernators.
Some animals that hibernate are badgers, squirrels, chipmunks, groundhogs, raccoons, skunks, frogs, toads, earthworms, snails, lizards and snakes.
When I taught biology I demonstrated for my class how a toad could be placed into hibernation and brought back out (unharmed) using a cooling process.
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