The females have a much smaller nose horn or no horns at all. Only a few other chameleons bear horns. Almost all chameleons have the helmet-like casque on the head, flattened body with arched back, toes in opposing pairs for grasping twigs and a prehensile tail. Chameleons are most famous for their ability to change colors. Chameleons cannot change color to match their surroundings.
Chameleons change their color as a response to temperature, or to communicate with other chameleons.
Chameleons that are defending territory or excited by a mate can change into the most spectacular colors. The chameleon has a Y-try long tongue. The chameleon can extend its tongue as far as one and a half times its body length and can zap its prey with speed and accuracy. When not in use, the tongue lies in the bottom of the chameleon's, mouth. To strike an insect, the chameleon opens its mouth slightly and specialized muscles suddenly contract, throwing out the tongue.