Grey squirrels, or Eastern grey squirrels, primarily live in the Eastern half of the U.S. and southern Canada. There is also a healthy population in the U.K., where they were imported in the 19th ...

The thirteen-lined ground squirrel doesn’t drink during its winter hibernation, even though systems throughout its body are crying out for water. Madeleine Junkins and colleagues now show that the ...

An Arctic ground squirrel survives brutal winters by entering a deep hibernation. Its body temperature plummets to below freezing, and its heart rate slows dramatically. Remarkably, the squirrel wakes ...

The primary difference between chipmunk and squirrel species lies in their habitat and storage strategy. Squirrels are the ...

The Arctic ground squirrel survives conditions that would cause irreparable brain damage in almost any other mammal on the ...

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Research into hibernating animals reveals that memory lives in the cell and life is defined by the persistence of embodied information.

With days starting to get longer and warmer, many creatures are emerging from their winter sleep, ready to find food and restart their normal activities. Photo by Twan Leenders Winter is fading away ...

Animals such as grizzly bears and Arctic ground squirrels have evolved the ability to hibernate as a way to survive winter months of extreme cold. During hibernation, their core body temperatures drop ...