This is a classic example of sexual selection using color signaling. Conspicuous colors are also displayed by toxic animal species, including many venomous snakes and the brilliantly colored ...

Conspicuous colors tend to be signals, often helping animals woo mates or warn predators. Yet the origins of these ...

A recent study finds that color vision evolved in animals more than 100 million years before the emergence of colorful fruits and flowers. And there has been a dramatic explosion of color signals ...

A new statistical analysis by researchers at the University of Arizona suggests that color vision evolved in animals around 500 million years ago, long before the evolution of colorful fruits and ...

For the first time, marine biologists have measured the energy demands of octopus color changes, revealing that the process ...