Ancient predators once thought to be squids are now linked to arrow worms. The discovery highlights unexpectedly advanced ...

Scientists found the 500-million-year-old fossil of a "penis worm" in the Grand Canyon—and reconstructed how the creature would have used its strange mouth to feed.

Plenty of strange animals have been discovered worldwide, but nothing quite like the new penis worm found in the Grand Canyon.

Exceptionally preserved Cambrian fossils uncovered in the Grand Canyon show how evolution accelerated in resource-rich waters ...

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

Scientists found that ancient squid-like fossils are actually early arrow worm fossil relatives, not cephalopods.

A 500-million-year-old enigma concerning ancient squid-like creatures has at last been deciphered. Researchers from ...

Worm-like fossil This tiny fossil, measuring just a few centimeters, is significant as it is the oldest confirmed ecdysozoan and the only one known from the Precambrian era.

This fossil allows researchers to look under the skin of one of the first arthropod ancestors. The level of complexity anatomy shows these early arthropod-relatives were much more advanced than ...

Unlike today's predominantly subterranean worm lizards, this species may also have been a surface dweller. The fossil shows extreme dental features, including strong jaws and a specialized tooth ...

These Fossils Are Found All Over, but What Made Them Was a Mystery Scientists in Brazil identified marine worms that made at least some trace fossil burrows called Bifungites. Share full article 10 ...