WASHINGTON (Reuters) -Scientists have unearthed in Arizona fossils from an assemblage of animals, including North America's oldest-known flying reptile, that reveal a time of transition when venerable ...

Tucked away in a remote bonebed in Arizona's Petrified Forest National Park laid hundreds of fossils, including a fragile jawbone belonging to one of the oldest-known flying reptiles: the pterosaur.

When you get to the Grand Canyon and gaze out at the incomprehensibly large sight in front of you, you might not even notice the life right beneath your feet. When you stand on the rim of the canyon, ...

These ancient crustaceans are meager in size but mighty in history. A colony of prehistoric triops, a tadpole shrimp that’s existed for hundreds of millions of years, was beautifully captured by ...

Artist Catherine Danae Elser is a sculptor of animals, current and prehistoric, and she used fossil evidence to recreate a pterosaur couple. Photo by Catherine Danae Elser. A species of bird-like ...

PHOENIX – Permit reservations for popular outdoor spot Fossil Creek in the Coconino National Forest will go on sale next week, officials announced Friday. Seasonal permits to swimming hole near Camp ...

PHOENIX — Fossil Creek in central Arizona is reopening to the public after a wildfire forced a closure for nearly a year-and-a-half. All sites, including the Childs Dispersed Camping Area, will reopen ...

Credit: Abraham Karam A man jumps from a cliff into a pool in Fossil Creek as others look on. Dexter Allen, a Fossil Creek patrol ranger, cleans trash from a firepit after a big weekend. Deep in ...