Many major groups of animals that have become a mainstay in modern times first appeared during the Cambrian Explosion.

The Cambrian explosion, long hailed as one of the most significant events in the history of life on Earth, has now been ...

Ancient trackways in seabed mud show animals moved purposefully 10 million years before the Cambrian Explosion.

Fossils offer a glimpse into Earth's ancient life, revealing the origins and evolution of complex organisms. Discoveries like ...

Until his find, the oldest known forms of life were more complex tiny organisms—also identified and photographed by Barghoorn (TIME, March 12)—that existed about 2 billion years ago.

500 million years ago, the world was a very different place. During this period of time, known as the Cambrian period, basically all life was in the water.

The Cambrian explosion was an extraordinary phenomenon in the evolution of life on the planet that led to the emergence of many animal phyla and the diversification of species. During this period, som ...

The underwater hunter prowled the seas during the Cambrian period — a critical juncture in the planet’s history when there was an explosion in the diversity of life and many major animal ...

He told BBC News that, if his theory is correct, these life forms would have been similar to slime mould ... "We see the same process as in the Cambrian period, 635 million years ago ...