Which small animals sleep in winter and wake up in spring?

Hedgehog is a heterogeneous animal, because it can't stably regulate its body temperature to keep it at the same level, so hedgehog hibernates in winter.

2. Frogs

When it gets cold in late autumn, frogs hibernate at the bottom of the water or in caves, and then return to the water to breed when the weather gets warmer the next spring.

3. Dormouse

Dormouse, named after its hibernation habit. There are about 20 species of Dormouse, which are distributed in Africa, Europe and Asia. They are good at climbing trees. They come out after dark and feed on fruits and nuts.

4.brown bear

Brown bears have the habit of hibernating. During hibernation, the body temperature, heartbeat and detoxification system will stop working to reduce the loss of heat and calcium and prevent hypothermia and osteoporosis.

5.bats

Bats generally have the habit of hibernating, mostly in caves. During hibernation, their metabolic ability is reduced, their breathing and heartbeat are only a few times per minute, their blood flow is slowed down, and their body temperature is reduced to be consistent with the ambient temperature.

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