A chameleon is a small, wild animal that belongs to the family of lizards. Chameleons have slim and long bodies that vary in size, from 15 mm (0.59 in) to 68.5 cm (27.0 in). Their skin is thick and covered in scales. The eyes are huge and rounded while they have crests or horns on their protruding heads, including a crest of small spikes along the spine. Their four legs are very long and end with four fingers on each foot. The tail is long and it curves at the end. However, what makes chameleons really unique is the color of their skin and the ability to change it. Some of the colors are: pink, red, yellow, purple, black, green, brown, including various multicolored patterns.