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

Animals that hibernate in winter use fascinating survival strategies. Discover 7 famous creatures, from bears to frogs, that sleep to survive the cold.

Ground squirrels are wary and shy animals, but it is possible to observe three different species in our Northcentral Texas and Southwestern Oklahoma region. One species is more likely to be sighted ...

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

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 ...

Cataract removal is one of the oldest and most common surgeries in the world. A surgeon makes small incisions in the eye, sucks out the cloudy lens and replaces it with an artificial lens implant.

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American Winter, when the days are dark and short, is ...

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 ...