Chameleons are lizards that can change their body coloration. The color of their skin helps them blend in with their environment. Chameleons that live in trees are usually green. Those that live in deserts are mostly brown.

They often change color to keep warm or cool. Dark color helps animals get warm because dark colors absorb more heat. They also change hues to communicate with other chameleons, using bright colors to attract potential mates or to alert enemies.