Chameleons can project their tongue up to 2.2 times their body length.
Chameleons have a very poor sense of smell.
Chameleons do have taste buds on their tongue but overall they have a poor sense of taste.
There are currently 202 recognized chameleon species and 85 of them are found on the island of Madagascar.
Chamaeleo namaquensis is found in the desert of Namibia. To cool off it will sometimes bury itself in the sand.
The word Kinyongia is from the Swahili word for chameleons: Kinyonga.
Chameleons change color by rearranging a lattice of nanocrystals in one of their top layers of skin cells called iridophores. Chameleons can then stretch this layer, broadening the nanocrystalline lattice, thereby causing it to reflect a different wavelength of light.
The word Brookesia is named after the British naturalist Joshua Brookes.
Pygmy chameleons (Brookesia, Palleon, Rhampholeon and Rieppeleon sp.) often resemble dry leaves, mosses and branches.
Many chameleon species have a bright red, orange or yellow mouth. This conspicuous interior when displayed is used as a defense against predators.