Scientists have solved the mystery of why some closely-related species of an iconic reef fish have vastly different colour patterns, while others look very similar. Scientists have solved the mystery ...

Dominant males of an Indonesian species of fish turn black during periods of heightened aggression, scientists have discovered. Their blackened markings, which quickly emerge at the start of a ...

When most people think of colour change, they think of octopuses or chameleons - but the ability to rapidly change colour is surprisingly widespread. Many species of crustaceans, insects, cephalopods ...

Researchers have looked at a species of fish to help unravel one of the biggest mysteries in evolutionary biology. "The importance of this work lies in the fundamental question: how and why do ...