Tracks left by some of the earliest complex animals are giving new insights into how they experienced the world. New research ...

For more than a century, the Cambrian explosion has served as biology’s big bang: the moment, roughly 538.8 million years ago, when complex animal body plans seemingly burst into the fossil record ...

For decades, scientists have wondered what triggered the sudden "explosion" of complex animal life on Earth. This new hypothesis suggests that the answer isn't found in shells or legs, but in the ...

More than 500 million years ago, during what is known as the Cambrian period, the seas and oceans on Earth were filled with a myriad of marine animals, many of which have now become extinct. This ...

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

Animal life is extraordinarily diverse and complex, having colonised almost all environments on Earth – from hostile hydrothermal vents in the deep sea to the skies across our continents. But all this ...

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