While blending into their environment is one reason, they also change colours to regulate their body temperature, communicate with other chameleons, and express emotions. The colour shifts are ...

The Meller's chameleon is the largest of the chameleons not native to Madagascar. Their stout bodies can grow to be up to two feet long and weigh more than a pound. Meller's distinguish themselves ...

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 ...