From chipmunks to birds, hundreds of species hibernate each year. But what about polar bears? Here's how they spend their winter.

How long do bears hibernate? It varies depending on species. Here's a basic guide on what hibernation is and why bears do it.

Discover interesting facts about the different types of bears and learn why not all bears hibernate.

Grizzly bears hibernate. Only pregnant female polar bears will hibernate, and they don’t truly hibernate compared to other animals. Grizzlies have smaller home ranges than polar bears.

Do polar bears hibernate? The arctic mammal's sleep behavior, explained The department receives more than 100 calls a year from homeowners in the Shasta County area reporting bear problems, with ...

California residents say they've spotted non-hibernating bears dragging their trash cans away.

The research rejects the idea that polar bears can avoid harmful declines in body condition in a sort of “walking hibernation,” as suggested by 1970s research.

One of the great marvels of nature is how bears, the largest carnivore in North America, are able to hibernate all winter, living off stores of fat they have built up through the rest of the year ...