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

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

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

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

A team led by researchers at the University of Cambridge found more than 1,500 small, carbonaceous fossils in samples from ...

A century-old fossil long mislabeled as a caterpillar has been reidentified as the first-known nonmarine lobopodian—rewriting ...

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

A 500 million-year-old fossil with a spider's brain structure suggests that arachnids may have evolved in the oceans.

Half a billion years ago, a strange sea-dwelling creature called Mollisonia symmetrica may have paved the way for modern ...

In a twist worthy of a detective novel, a long-misidentified fossil at Harvard's Museum of Comparative Zoology (MCZ) has ...

Paleontologists named the worm Kraytdraco spectatus, for its resemblance to a Star Wars monster. They say it sheds light on ...