A bright red band on a butterfly’s wing is a warning: eat me and you’ll regret it. That same red band shows up on dozens of ...

A bright red splash on a butterfly’s wing is more than a pretty pattern. It is a warning label, honed by millions of years of ...

Evolution seems to follow a script more often than expected. Researchers found that distantly related butterflies and moths ...

A fish thought to be evolution’s time capsule just surprised scientists. A detailed dissection of the coelacanth — a 400-million-year-old species often called a “living fossil” — revealed that key ...

A 30-year-long study of a small population of marine snail shows how evolution can adapt to environmental changes quite rapidly. This study revealed how a specific ecotype of the snail changed its ...

Snails on a tiny rocky islet evolved before scientists' eyes. The marine snails were reintroduced after a toxic algal bloom wiped them out from the skerry. While the researchers intentionally brought ...

Only the truest of crabs move sideways. (Paul Starosta/Stone/Getty Images) As you may have heard via a barrage of internet ...