And it turns out these trace fossils – particularly the ones from the transition out of the Ediacaran period and into the Cambrian – have a lot to say. “The Ediacaran fauna was dominated by complex, ...

A new study of ancient fossil trails pushes the origins of complex life deeper into Earth’s history, before the Cambrian Period began.

A groundbreaking study suggests that the famous Cambrian explosion—the dramatic burst of diverse animal life—might have actually started millions of years earlier than we thought. By analyzing ancient ...