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 ...

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 ...

When arctic ground squirrels hibernate for the winter, they can lower their body temperatures to freezing levels and stay dormant for up to eight months. Researchers at the University of Alaska ...

The thirteen-lined squirrel, aptly named for the thirteen stripes on its back, spends much of its time above ground dodging angry humans. But for several months of the year, it gets a reprieve: Like ...

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 ...

Inspired by hibernating squirrels, scientists have developed a promising new drug that could transform how we treat heart ...

No squirrels are being harmed, and many people might eventually be helped. With cold temperatures limiting outdoor activity and scarcely any sunshine to soak up, it's natural to feel a bit sluggish ...

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.

Adjust the colors to reduce glare and give your eyes a break. Use one of the services below to sign in to PBS: You've just tried to add this video to My List. But first, we need you to sign in to PBS ...