Rather than a constant upward trajectory of evolution, it’s been billions of years of boom-and-bust cycles – first an explosion of life, and then a mass extinction of all but the most hardy hangers-on ...

A new study of ancient fossil trails pushes the origins of complex life deeper into Earth’s history, before the Cambrian Period began.

New fossil evidence suggests the Cambrian Explosion, once thought to have occurred 530 million years ago, may have begun 15 million years earlier.

The Cambrian explosion was an extraordinary phenomenon in the evolution of life on the planet that led to the emergence of ...

The Cambrian explosion was an extraordinary phenomenon in the evolution of life on the planet that led to the emergence of ...

A recently discovered creature, Mosura fentoni, has stunned paleontologists with its bizarre, otherworldly features. Unveiled ...

University of Missouri researchers find Earth's ancient animal reefs were surprisingly sparse compared to their modern ...

A remarkably preserved 520-million-year-old Youti Yuanshi fossil, no bigger than a poppy seed, has unveiled unprecedented ...

This Cambrian period critter is now considered a part of a specific group of arthropods called the mandibulates, who went on to become some of the most successful animals on our planet in and out ...

One of the largest animals to live during the Cambrian, it was probably agile and fast, darting after soft prey in the open water rather than pursuing hard-shelled creatures on the ocean floor.