Hibernation
Videos
Hibernation is a state of minimal activity and metabolic reduction entered by some animal species. Hibernation is a seasonal heterothermy characterized by low body-temperature, slow breathing and hear
Northern bat hibernating in Norway
Bats hibernating in a silver mine
Groundhog gathering nesting material for its warm burrow in preparation for hibernation
Bear
Videos
Bears are carnivoran mammals of the family Ursidae. They are classified as caniforms within the suborder Caniformia. Although only eight species of bears are extant, they are widespread, appearing in
Hibernation
…called overwintering. Although traditionally reserved for "deep" hibernators such as rodents, the term has been redefined to include animals such as bears and is now applied based on active metabolic suppression rather than any absolute decline in body temperature. Many experts believe that the processes…
Ours brun parcanimalierpyrenees 1
Plithocyon armagnacensis skull, a member of the extinct subfamily Hemicyoninae from the Miocene
Life restoration of Arctotherium bonariense
Fossil of the cave bear (Ursus spelaeus), a relative of the brown bear and polar bear from the Pleistocene epoch in Europe