Residents of a California neighborhood are warning other locals to beware of "a very mean squirrel" that has sent at least two people to the emergency room.

Flyers have been posted, warning residents that the squirrel is no joke and that more than five people have been attacked by a ”very mean squirrel" that “comes out of nowhere.” ...

Bats are flying mammals you might spot and — rarely — hear at nighttime. Here are three common bat sounds — and what they mean.

The Cow Knob salamander is standing — well, crawling — in the path of progress. The little amphibian lives nowhere in the world but a few mountain ridges in a wild and scenic region along the Virginia ...