Some animals, like deer mice, enter torpor instead of hibernation. Sometimes they seek shelter in abandoned bird nests, rock crevices, or under the roots of trees.

The cold, dark winter months can make it difficult for animals to find food and water. Hibernation helps some animals survive this time. These animals become inactive to save energy. An animal in ...

But these aren’t the only places to find slumbering critters. During hibernation, animals slow their metabolisms and match their internal body temperatures to ambient conditions. Whether tropical ...

For warm-blooded animals that don’t migrate, one way to survive the winter is to sleep through it. Hibernation is a great strategy that enables animals to conserve energy when food is scarce. During ...

With the arrival of spring and warmer weather, many of Colorado's black bears are beginning to wake up after months of being ...