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.

Imagine a world without skyscrapers, bustling cities, or the presence of humans. North America once hosted an incredible ...

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 ...

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 ...

Monarch butterflies will be listed as a threatened species U.S. officials decided to extend protections to monarch ... "The iconic monarch butterfly is cherished across North America, ...

The North American Veterinary Community welcomed a special visitor to its Gainesville office Wednesday morning. Calvin, a 3-year-old gray French bulldog, strolled around the halls, never shying ...

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 ...