WASHINGTON (AP) — Newly discovered fossils have given scientists their first real glimpse of when Earth made a crucial transition from plants and unrecognizably simple animals to the complex creatures ...

For decades, scientists have sought to explain the so-called "Cambrian Explosion," a pivotal period over 500 million years ...

A newly analyzed fossil site in Yunnan, China, has revealed over 700 specimens dating back 554 million years, showing complex bilateral animals coexisted with Ediacaran life before the Cambrian ...

Scientists in China have uncovered over 700 fossils from the Jiangchuan Biota, dating back 554 million years, that show complex animals existed millions of years before the Cambrian explosion. The ...

And one of those areas provides a “snapshot” where evolution brings forces together. Complex animals with symmetry developed In that spot, Dunn said, the group of fossils includes both bizarre ...