Learn more about the nectocaridid, an ancient marine creature that looks like a squid but actually belongs to a family of formerly fierce, predatory worms.

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

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