Did you know that most species of chameleon come in a range of colors, and many species have the ability to change colours

Chameleons or chamaeleons (family Chamaeleonidae) are a distinctive and highly specialized clade of lizards. Many species of Chameleons have the ability to change colors. 

Meru Three-horned Male Chameleon most limited at Mount Meru, photo from field guide of Amphibians and reptiles of Arusha National Park (Tanzania), copyright 2002 TANAPA

Chameleons are distinguished by their zygodactylous feet; their separately mobile, stereoscopic eyes; their very long, highly modified, rapidly extrudable tongues; their swaying gait; and crests or horns on their distinctively shaped heads. Many species also have a prehensile tail. Well adapted for climbing and visual hunting, they are found in warm habitats that vary from rain forest to desert conditions in Africa, Madagascar, and southern Europe, and across south Asia as far as Sri Lanka. They have also been introduced to Hawaii, California, and Florida, and are often kept as household pets.

The Chameleons are able to change their skin colours for social signaling, reactions to Temperature and for defense

Some chameleon species are able to change their skin coloration. Different chameleon species are able to vary their coloration and pattern through combinations of pink, blue, red, orange, green, black, brown, light blue, yellow, turquoise, and purple.

Color change in chameleons has functions in social signaling and in reactions to temperature and other conditions, as well as in camouflage. The relative importance of these functions varies with the circumstances, as well as the species. Color change signals a chameleon's physiological condition and intentions to other chameleons. Chameleons tend to show darker colors when angered, or attempting to scare or intimidate others, while males show lighter, multicolored patterns when courting females.

Some species, such as Smith's dwarf chameleon, adjust their colors for camouflage in accordance with the vision of the specific predator species (bird or snake) by which they are being threatened.