Researchers have often turned to the Grand Canyon's layers of sedimentary rock to discover pivotal moments in the history of ...

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

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

Soft-bodied Cambrian fossils found in the Grand Canyon reveals how early animals evolved complex feeding systems over 500 ...

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

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

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

A stunning new fossil find from the Grand Canyon fills in some blanks from a time when evolution began experimenting with ...

Recently unearthed fossils from the Cambrian period shed light on a key stage of evolution, when life became much more ...

Whether you love spiders or can't be within 10 feet of them, you probably think of them crawling around on land. Historically ...

University of Arizona researchers reviewed an "exquisitely preserved" fossil of Mollisonia symmetrica that supports the idea ...