Here are 15 of the largest animals in North America, where you'll find them, and anything else you need to know about them. Not all of them are land animals, either.

The North American wolverine has officially been listed as threatened under the Endangered Species Act and will receive long-anticipated federal protections, US officials announced Wednesday, as ...

However, on January 22, the Eastern cougar subspecies was officially declared extinct in the U.S. and removed from the endangered species list by the U.S. Fish and Wildlife Service.

Traskasaura sandrae is a "very odd" mix of primitive and derived traits. A prehistoric sea monster never-before-known to man was hunting prey in North America 85 million years ago, fossils found ...

This makes the mule deer a purely North American big-game animal that has been shaped and forged by the rugged mountains, plains, and deserts of the West. Because of the harshness of these ...

Since last week, 16 species of North American land birds have been spotted in Britain and Ireland, including several species of warblers, one northern parula, 10 cliff swallows and three Baltimore ...