Animals of the Cambrian period went through one of the greatest evolutionary surges in history, known as the Cambrian Explosion. Animals of the Cambrian period likely began as worms or worm-like ...

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 ...

A newly described species from the Burgess Shale had three eyes, clawed limbs, and a tail full of gills—plus internal organs preserved in stunning detail. Reading time 3 minutes A newly described ...

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

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 ...

Spiders, crabs, and other arthropods evolved from a group of animals that underwent a burst of diversity around 500 million years ago. One fossil site provides an extraordinary glimpse into these ...

Cambrian Period creatures known as sea moths seemed alien because of their additional eye, but a study finds anatomical features more in line with modern animals. An artist’s impression of Mosura ...

A groundbreaking discovery of fossils has provided scientists with an unprecedented insight into a pivotal moment in Earth's history: the transition from rudimentary plant and animal life to the ...

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

Here’s what you’ll learn when you read this story: Most of these fossilized animals are ancestors of modern invertebrates, including modern starfish, but a few among them count as ancient ancestors of ...