Why do some animals take a long winter sleep?

Certain animals hibernate because food supplies become scarce during the winter months. By going into a long deep sleep, they bypass this period completely, waking up when food becomes more plentiful. ... Brown fat provides extra body heat as well as needed energy when the animal wakes up.

1. Which animal takes a long winter sleep?
2. What is long winter sleep?
3. Do animals actually sleep through winter?

Which animal takes a long winter sleep?

Bats, the only true flying mammals, go into true hibernation, where they go into such a deep sleep that they may appear to be dead. They can be some of the longest hibernators, if left undisturbed.

What is long winter sleep?

The long winter sleep is known as Hibernation. The word “hibernation” is derived from the Latin word 'hibernare', meaning, “to pass the winter”. ... They can survive while a long sleep because their bodies use their stored fat or food for energy.

Do animals actually sleep through winter?

Despite what you may have heard, species that hibernate don't “sleep” during the winter. Hibernation is an extended form of torpor, a state where metabolism is depressed to less than five percent of normal.