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

A spiky worm with legs like noodles. A giant predator that looks like a cross between a walrus and a housefly. Many animals that evolved during the Cambrian period, 541 million to 485 million ...

The Cambrian period, part of the Paleozoic era, ... Greenland, and China have yielded rarely fossilized soft-bodied creatures such as marine worms buried during undersea mud avalanches.

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

The Cambrian Explosion: For most of the nearly 4 billion years that life has existed on Earth, evolution produced little beyond bacteria, plankton, and multi-celled algae.But beginning about 600 ...

A major fossil site bearing witness to the Cambrian explosion and providing evolutionary evidence for early life-forms, it was deemed one of the most surprising scientific discoveries of the 20th ...

An illustration of Anomalocaris, which lived 541 million to 530 million years ago during the Cambrian Period. Katrina Kenny Get the Popular Science daily newsletter💡 ...

But during the Cambrian period, creatures with complex body structures emerged. Scientists who study such things call this the "Cambrian explosion" because it was a period of rapid evolution.

Cambrian Period creatures known as sea moths seemed alien because of their additional eye, but a study finds anatomical features more in line with modern animals. An artist’s impression of ...

At the ongoing exhibition, Miraculous Life in the Ancient Oceans: Exhibition of Premium Fossils from the Cambrian Chengjiang Biota, at the Natural History Museum of China in Beijing, visitors can ...