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

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

A mysterious and strange discovery in heart of the Grand Canyon, Arizona has revealed new clues that could reshape our ...

A mysterious and strange discovery in heart of the Grand Canyon, Arizona has revealed new clues that could reshape our ...

Paleontologists have discovered remarkable fossils in the Grand Canyon that reveal fresh details about the emergence of ...

A long-misidentified fossil, once thought to be a caterpillar, has revealed itself as a groundbreaking discovery in early animal evolution.

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

Remarkable fossils found in North Greenland have helped researchers solve a 500-million-year-old puzzle surrounding ...

A fossilized brain from a 500-million-year-old sea creature shows unexpected spider-like features, hinting that spiders and their kin may have evolved in the ocean—not on land.

When a string of misidentifications ended, a fossil sat in a drawer at Harvard for a century until its significance was ...