A genomic atlas of Nematostella vectensis reveals how primitive animals created multiple cell types millions of years ago, ...

While domestic animals gradually became larger over the last 1,000 years, wild animal body sizes shrank. A new study conducted in Mediterranean France identifies one clear common denominator driving ...

The missing link in the mystery turned out to be an event called the Cambrian explosion. It was only after it that living ...

Animals have evolved crab-like bodies at least five times throughout history, a process known as carcinization.

Carcinization is the separate, five-time evolution of crabs. Parallel evolution isn’t unheard of by any means, but crabs have done it a lot. Their repeated similar evolution makes them interesting to ...

An artist’s impression depicts Kryoryctes at Dinosaur Cove in Australia. New research supports the hypothesis that Kryoryctes is a common ancestor of both the platypus and echidna. - Peter Schouten ...

The oldest fossilised remains of complex animals appear suddenly in the fossil record, and as if from nowhere, in rocks that ...

To understand the origins of multicelled life, researchers are studying a motley assortment of simpler animal relatives. The commonalities they’re unearthing offer a trove of clues about our mutual ...

Red blood is the exception, not the rule. Evolution has painted it green, purple and white in animals that push physiology ...