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

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 ...

Roughly 500 million years ago, a strange event in the evolution of life on Earth seems to have taken place.The known fossil record from this time, which falls w ...

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 ...

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

From butterflies to blue whales, corals and worms, Earth is home to an incredible diversity of animals. How all of these ...

Roughly 500 million years ago, a strange event in the evolution of life on Earth seems to have taken place. The known fossil ...

Trove of fossils discovered in Canada sheds light on "when life first became large, complex and unmistakenly animal." ...

But more than half a billion years ago this wilderness was an ancient seafloor home to the wrinkled pancakes, fleshy fronds ...

Richard Ashby Robison of Overland Park, Kansas, died April 24, 2026. He was 93. He was born Jan. 10, 1933, in Fillmore, Utah, the youngest son of Aaron Wayne and Fern Ashby Robison. Richard married ...

Canadian deep-sea fossils push the origin of animal sex and movement back 567 million years, rewriting early evolutionary ...