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

CINTALAPA, Mexico (AP) — With Mexican cattle again barred this month from entry to the United States over fears of spreading ...

Olympia oysters, whose native range runs from Baja California to southern Alaska, are being enlisted as ecological engineers ...

A long-misidentified fossil at Harvard’s Museum of Comparative Zoology, initially described in 1865 as a caterpillar, is now ...

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

A previously unknown species of penis worm navigated what's now the Grand Canyon half a billion years ago—making up part of a fascinating, first-of-its-kind discovery at the iconic US site. By ...

Researchers from Cambridge University organised the expedition, and they discovered 507- to 502-million-year-old fossilised remains.

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

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

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.