For more than two millennia, people have watched chameleons swivel their turreted eyes in different directions and wondered how such a small reptile pulls off a trick that seems to defy basic anatomy.

Chameleons are some of the most brilliantly colored animals on the planet. But how did they evolve the ability to change color? Scientists used to believe that chameleons changed color by spreading ...

For more than a century, one small chameleon species sat in museum drawers and field notes, misread by the very science that sought to classify it. Only recently did a closer look at its vision and ...