Million-Year-Old Cambrian Fossils Indicate Earliest Known Example of Predator-Prey 'Arms Race' Scientists have found evidence ...

20 Million Years After The Cambrian Explosion, A Poisonous Gas Wave Wiped Out Nearly Half Of All Sea Life On Earth, According To Recent Research Story by Emily Chan • 11mo ...

were among the most successful organisms ever to populate Earth. These familiar marine arthropods first arose about 545 million years ago in the early Cambrian and thrived throughout the world's ...

Cambrian shell fossils reveal predator-prey battles shaped evolution, as predators attacked and prey adapted by developing ...

dramatically. It was the time of the Cambrian Explosion, an eruption of life when Earth’s very first animals began appearing in the fossil record — the ancestors of all major animal groups ...

Scientists until then had believed that the Cambrian explosion was the point when life on Earth opened out, kaboom, like a starburst of wondrous beasts—elaborate and sizable beings (we call them ...

"This was a fascinating time in Earth's history," said Kalin McDannell, a postdoctoral researcher and the lead author of the paper. "The Great Unconformity sets the stage for the Cambrian ...

The Precambrian encompasses 86 percent of the history of Earth. As its name implies, this includes all of geological time prior to the Cambrian period. Hadean Era (4,550-3,850 mya) The Precambrian ...