Single gene responsible for hibernation in mammals, study finds - The gene is present in all mammals and the study reveals ...

When Myron Means poked his head into the den, the sow was already awake. The crevice den was cramped, and she turned away from him as he raised the dart gun. The black bear had chosen to den in a ...

A tourist in Yellowstone National Park captured footage of a grizzly bear that appeared to be celebrating the end of hibernation. The “playful bear” can be seen trudging through the snow, sliding ...

Canadian skiers were in for a shock when the resident grizzly bear poked its head through the fresh snow for the first time since taking his hibernation nap. Boo the bear clawed through the powder at ...

Thirteen-lined ground squirrels hibernate for more than half of each year. Studying their extreme behavior has yielded biological insights and could lead to biomedical breakthroughs. Credit: Tyler ...