Fossil tracks from 545 million years ago suggest complex life forms were already crawling around before the Cambrian explosion began, hinting that evolution’s greatest leap may have started much ...

A fossil misidentified for over a century is now reshaping what scientists know about how life first made the leap from sea ...

A stunning new discovery in the Grand Canyon is offering scientists an unprecedented glimpse into Earth’s earliest complex ...

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