A new study indicates the giant reptile Deinosuchus is not a close relative of modern alligators, as scientists previously ...

Besides burning thousands of homes and displacing residents, the January fires, like earlier ones, upended the natural ...

Fifty thousand years ago, North America was home to towering giants. Mammoths roamed the tundra, saber-toothed cats hunted in ...

When the fur trade wiped out North America’s sea otters in the early 20th century, sea urchins—a favorite otter food—exploded ...

In the largest study of its kind, researchers at the Florida Museum of Natural History have used data from a 120-year-old ...

Here's the story of one such survivor, which is the largest bird in North America: the California Condor (Gymnogyps ...