Paleontologists unearthed fossils in the Grand Canyon dating back more than 500 million years that offer a new look into a ...

With it's widely varied landscapes, Arizona is home to so many cool creatures. These are 10 of the most unique animals. Have you seen them all?

Rocks gathered along the Colorado River contained evidence of a bustling community of animals in an ancient sea.

A treasure trove of exceptionally preserved early animals from more than half a billion years ago has been discovered in the ...

Learn how the Grand Canyon used to be home to an ancient evolutionary competition that has since left behind a plethora of ...

Partial blue skies in the morning allowed many park visitors to ignore fires on the North Rim. By afternoon, ashfall made for ...

Each year, millions of travelers are drawn to Grand Canyon National Park.. Even though it’s widely photographed, nothing compares to seeing this natural wonder of the world in person.. Its sheer ...