More than 500 million years ago, during what is known as the Cambrian period, the seas and oceans on Earth were filled with a ...

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The Ediacaran, an era that ended about 540 million years ago, is considered the prelude to the Cambrian explosion, a period ...

Advances in imaging techniques reportedly debunks a purported "animal" fossil from long before the Cambrian explosion.

New research proposes the Brain-First Hypothesis: the evolution of the brain drove animal diversification during the Cambrian ...

Scientists revisiting mysterious 540-million-year-old microfossils from Brazil have overturned a major idea about early ...

Palaeontologists are helping resolve the evolution and ecology of Odaraia, a taco-shaped marine animal that lived during the Cambrian period. Fossils reveal Odaraia had mandibles. Palaeontologists are ...

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Life on Earth may have begun billions of years ago with a quiet, single-celled whimper, but it really arrived with a bang about 540 million years ago. Within a relatively short period of time, life ...

May 6 (UPI) --During the Cambrian explosion, thousands of new species appeared during a relatively short amount of time. The earliest forms of many modern species first emerged during the Cambrian ...

The explosion of animal life in Earth's oceans half a billion years ago during and after the Cambrian Period is commonly attributed to a substantial and sustained rise of free oxygen (O2) in seawater.