Question

Why do animals hibernate

Answer 1

Animals hibernate to save and conserve energy by remaining inactive basically when  food is scarce,to do this they metabolism and reducing their body temperature for weeks , months . 

-------------------------------------------------------------------------------------------------------------------
Best of luck ;)
ROYALJATT

Answer 2

Animals hibernate to face the cold, i.e, when there is no food and it's very cold, mostly that time. They do not eat for weeks or even months. They just sleep the whole time and when it is a good temperature, they come out.

Hope it helps you!!
PLEASE MARK THE ANSWER AS BRAINLIEST!!!