What Actually Happens When Animals Hibernate?

Ever feel like lying in bed and sleeping for days? Unlucky for us, humans can’t exactly hibernate. But some animals are capable of sleeping for months — without eating, drinking or expelling body waste.

Some species have developed unbelievable hibernation mechanisms. In the winter, wood frogs freeze like frog-shaped ice cubes — and then jump back into life once the air loses its chill.

How do these animals do it? What happens if they don’t hibernate? And who holds the record for the longest hibernation? Find out all these answers below.

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Carrie-Anne Brown

interesting article, thanks for sharing :)

Kathy Perez
Kathy Johnson2 years ago

awesome facts and info

Caili W.
Andrea W.2 years ago

Interesting information. Thanks for sharing.

Mary B.
Mary B.2 years ago

Walking hibernation hmmm? That must be very common among humans as well as bears.

Interstellar Daydreamer
Crystal Sky2 years ago

thank you!

Ben B.
Ben B.2 years ago

Fascinating, I knew animals hibernated to conserve energy during winter months when food is scarce, but didn't know how they did it.

Lynn C.
Lynn C.2 years ago


Cathleen K.
Cathleen K.2 years ago


heather g.
heather g.2 years ago

Thanks ~ I didn't know birds and lemurs hibernated...

Autumn S.
Autumn Away S.2 years ago

Very interesting :) thanks for the article