For example, a female common chameleon (Chamaeleo chamaeleon) displays bright yellow spots when she’s ready to mate. Afterwards, she’ll darken her skin tone and show off blue and yellow spots ...

A chameleon’s colorful beauty is truly skin deep. Under the transparent outer skin are two cell layers that contain red and yellow pigments, or chromatophores.

This story appears in the September 2015 issue of National Geographic magazine. For sheer breadth of freakish anatomical features, the chameleon has few rivals. A tongue far longer than its body ...

When they are combined with yellow pigments in the chameleon skin, the animal appears green. Stretching the cells and moving the crystals farther apart produces colors ranging from yellow to red.

Chameleons are famous for their quick color-changing abilities. It's a common misperception that they do this to camouflage themselves against a background. In fact, chameleons mostly change color ...

These birds display an array of bright colours, including red, yellow, green, blue, orange, pink, and ... Only 5% of people can spot the chameleon hidden among the parrots in the picture within 9 ...