Chamaeleonidae:

Chamaeleons are probably best known for their ability to change colors. Apart from that, they have a number of other characteristics that make them the most easily recognizable lizards: their body is laterally compressed and their heads often possess extensively developed horns and crests. Their tail is prehensile and 2 or 3 of their toes are fused to form grasping pads, making them ideally adapted to arboreal life. Chameleons can move their eyes independently and through their position on protruding cones they have three-dimensional vision when they look ahead. This allows them to focus their prey ahead of them. By means of their extremely elongated and protractable tongue they can catch prey at a distance corresponding to their own body length.