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 ...

The Cambrian Explosion is a landmark moment in the history of life on Earth when many of the major groups of animals first ...

If you liked the Cambrian Explosion, you’ll love the Ordovician Radiation Life went nuts 450 million years ago, ... lifeforms could draw much more energy out of the environment.

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 ...

The Cambrian explosion may have happened much earlier. The study quantitatively indicates that organisms with slender body profiles thrived around 545 million years ago.

The Cambrian period, part of the Paleozoic era, produced the most intense burst of evolution ever known. The Cambrian Explosion saw an incredible diversity of life emerge, including many major ...

It wasn't truly an explosion, he told Live Science, but rather a gradual increase in biodiversity that took place throughout the early Paleozoic era (541 million to 251.9 million years ago).

The Grand Canyon. A fresh analysis of rocks exposed in the side of the canyon is changing an 80-year-old textbook model and our understanding of the Cambrian Explosion.