Scientists have unearthed in southern China fossils of a multitude of marine creatures dating to more than a half billion years ago, showing a deep-water ecosystem thriving in the aftermath of the ...

An event as simple as the world's first bite may have sparked an ancient "explosion" of life 500 million years ago that led to the rise of the broad groups of animals that are still alive today. A ...

The great, car-sized predatory "shrimp" that was master of Earth's seas a half billion years ago may have been unable to eat anything harder than baby food. Several lines of evidence along with a new ...

500 million years ago, the meter-long Anomalocaris roamed the Cambrian seas. Researchers once thought that Anomalocaris crushed trilobites with their teeth, but recent fossil analysis suggests ...

A newly described species from the Burgess Shale had three eyes, clawed limbs, and a tail full of gills—plus internal organs preserved in stunning detail. Reading time 3 minutes A newly described ...

A new filter-feeding giant that trolled the Cambrian seas has been unearthed in Greenland. The species, dubbed Tamisiocaris borealis, used large, bristly appendages on its body to rake in tiny ...

Discover how trilobites may have used a brood pouch for parental care, aiding their young in the predatory Cambrian seas. Erma Bombeck called motherhood the world's second oldest profession, but she ...

The fossilized organisms of the Cambrian period some 500 million years ago are both alien and familiar. A few of them look a lot like the creatures around us today. But even some that don’t look at ...