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

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 ...

Bryozoans are tiny, filter-feeding colonial invertebrates that thrive in the world's oceans today, yet for decades their ...

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 ...

Tiny honeycomb-like colonies from southern China have opened a long-running gap in the story of animal life. For decades, ...

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 ...

Scientists suggest Earth's earliest animals reproduced asexually, slowing evolution and delaying the biodiversity boom that ...

Sea-floor trails left by animals more than half a billion years ago could be the earliest evidence of the evolution of vision ...

Our blue planet is home to countless creatures, some well-known, others still shrouded in mystery. From tiny tardigrades to massive blue whales, the diversity of life today reflects billions of years ...