But no creature is more tied to the image of a long, cozy winter than hibernating bears all snuggled up in their dens. This ...

Early research suggests a hibernation-like state in humans may protect organs, slow aging, and boost recovery in critical ...

For a bear, Brooks Falls at Katmai National Park in Alaska is like one of those conveyor-belt sushi restaurants. During the summer months, diners are treated to a seemingly endless supply of salmon.

“Our findings suggest that hibernating animals do not simply tolerate muscle damage during winter. Instead, they actively suppress muscle repair in a controlled and reversible way,” Miyazaki explains.

As humans, would we ever think of giving up eating, drinking, or even staying awake for months on end to survive a harsh cold winter? We may not even adopt this lifestyle, but some species in the ...

Just five more minutes, please!

It's the happiest time of the year — Fat Bear Week! This year's event takes place from Sept. 23-30, and Mashable will be following all the ursine activity. Katmai National Park and Preserve’s brown ...

Captive lemurs receive an abundance of food year-round, so the need to hibernate as a way to store energy when resources are scarce is not needed. Frank Vassen Via Wikimedia Commons under CC BY 2.0 In ...

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