How do bears hibernate?

When bears hibernate, they will choose a suitable cave, usually on a sunny hillside or a dead tree cave. The hibernating time can last 4 to 5 months. If it is disturbed during hibernation, it will wake up immediately and occasionally come out of the hole to move around.

Bears are paralyzed during hibernation, but their body temperature does not drop or drops a little. They do not eat for a long time and are in a sleep state. They are easy to wake up and can respond immediately to external stimuli. It is known as a semi-hibernating animal.

Bears living in cold northern areas hibernate, while black bears located in subtropical and tropical areas often do not hibernate.

Extended information:

Bears that need to hibernate include:

1. Polar bear

Polar bear is the largest terrestrial carnivore in the world. Also known as White Bear. The skin is black and the hair is transparent so it usually looks white, but also has yellow and other colors. It is huge and ferocious.

Generally speaking, polar bears are very active in March and May every year, running around the ice floes in search of food, leading an amphibious life. In the severe winter, polar bears' outing activities are greatly reduced, and they can almost go without eating for a long time. At this time, they look for shelter from the wind and lie down on the ground to sleep. The respiratory rate decreases and enters partial hibernation.

2. Black bear

A kind of forest animal with a wide range of activities. The Asian black bear is a typical forest animal. The black bear in the north has the habit of hibernating, and lives in tree holes and holes in big trees. Establish nests in rock caves and burrows, under logs or rocks, along riverbanks, in dark ditches and shallow depressions.

In autumn, they will eat a lot of food to prepare for hibernation. They will eat a lot of food to store fat. They will hibernate in the cave throughout the winter, not eating, and in a semi-sleep state. After hibernation, they will automatically lower their body temperature and heart rate to Save the body's metabolism. He came out of the cave in March or April of the following year.

3. American Black Bear

The American black bear is large in size and has stubby limbs. The black bears living in the mid-coast of British Columbia, Canada, even have milky-white individuals, known as "spirit bears"; the American black bears in Alaska have blue-gray body hair, so they are also called "glacial bears."

In the spring after hibernation, it will feed on the lower slopes in the south, and then move to the higher slopes in the north and east in the summer. Will climb trees when in danger. Black bears hibernate in winter and build dens in tree holes, under logs or rocks, along riverbanks, caves, dark ditches and shallow depressions.

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