Hibernation

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There are animals in the wild like hedgehogs and birds that hibernate for instance hedgehogs eat food and then burrow and sleep inside the burrow that it made and sleeps over winter and birds collect sticks and make nests in trees. Squirrels for instance collect and store nuts and gatherings in trees and other hiding places. They sometimes dig a hole in the ground and bury the nuts in the ground.

Other animals that hibernate is bears and mice and other small and big animals some don’t survive winter when hibernating but there’s an animal that its body shuts off and heart stops beating in the winter but when its summer when hibernation is over it comes back alive.

Normally land animals are doing hibernation not animals in the ocean or air borne animals like birds only some. Sleep, by contrast, is a mostly mental change. There are physiological aspects of sleep that are similar to hibernation, such as a reduced heart and breathing rate and lowered body temperature, but these changes are very slight compared to hibernation. Animals select places to hibernate in and makes sure that there safe not dangerous because they can get eaten if there small. Hibernation is a way for many creatures – from butterflies to bats – to survive cold, dark winters without having to forage for food or migrate to somewhere warmer. Instead, they turn down their metabolisms to save energy.