A microorganism whose evolutionary roots can be traced to the era of the first multicellular animals may provide a glimpse of how single-celled organisms made a critical evolutionary leap. In ...

Scientists claim to have uncovered evidence that the evolution of animal life on Earth was delayed by almost two billion years. NEW YORK: Scientists claim to have uncovered evidence that the evolution ...

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 ...

A new study from the University of Arizona reveals that color vision in animals evolved around 500 million years ago, much earlier than the appearance of colorful fruits and flowers. The research, ...

The two pigs on the left are the German refined Landschwein and the German Edelschwein. On the right is an animal that looks very similar to an original domestic pig. Short snouts and a flat profile - ...

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 ...

Animals, from worms and sponges to jellyfish and whales, contain anywhere from a few thousand to tens of trillions of nearly genetically identical cells. Depending on the organism, these cells arrange ...