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

A new study posits that same-sex sexual behavior developed to help primates in complex social groups ease tension, reduce ...

The conservation of genome regulatory elements over long periods of evolution is not limited to vertebrates, as previously ...

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

With copper-blue blood prized by modern medicine and a body plan older than dinosaurs, the horseshoe crab reveals how ancient ...

A University of Montpellier study published on September 1st in the Proceedings of the National Academy of Sciences reported that human intervention over the last millennium drove a sharp divergence ...

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 ...

Sponges are among Earth's most ancient animals, but exactly when they evolved has long puzzled scientists. Genetic ...

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

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 origins of consciousness date back about 540 million years ago, when animal bodies became more complex. Feelings like pleasure and pain act as a "common currency" for decision-making, as we see in ...