F ossils of a new group of animal predators have been located in the Early Cambrian Sirius Passet fossil locality in North ...

Terrorizing the oceans around northern Greenland, these fossils were some of the Cambrian's fiercest, free-swimming predators ...

A predator of the Cambrian was the giant, shrimplike Anomalocaris, which trapped its prey in fearsome mouthparts lined with hooks. Even stranger was the five-eyed Opabinia, which caught its ...

High in Canada’s Rocky Mountains, the animals of an ancient ecosystem can be seen battling for life. The fossils of the Burgess Shale offer a glimpse at the incredible diversity of early life on ...

There was no need to be camouflaged, warn off predators or seduce a partner with bright patterns. Some animals could likely tell the difference between light and dark, but they never knew whether that ...