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 in ...

In nature, the ability to change color can be key to survival. Vision is a very important sense in much of the animal kingdom, and many animals have come up with unique ways to use this sense to ...

When you think of color-change artists of the animal world, you probably think chameleons, but these other cool beasts can change color, too. This cephalopod—that means big-headed, tentacled ...