The horns on a chameleon are made up of ringlike segments of inner bone covered by a hard keratin-like skin.
The word Kinyongia is from the Swahili word for chameleons: Kinyonga.
The word Brookesia is named after the British naturalist Joshua Brookes.
True chameleons include the following genera: Archaius, Bradypodion, Brookesia, Calumma, Chamaeleo, Furcifer, Kinyongia, Nadzikambia, Palleon, Rhampholeon, Rieppeleon and Trioceros.
Some chameleons play dead to avoid predation; this is called thanatosis.
There are currently 202 recognized chameleon species and 85 of them are found on the island of Madagascar.
Furcifer oustaleti (Oustalet’s Chameleon) is the longest chameleon species reaching lengths of 27 inches (68cm).
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.
Pygmy chameleons are sometimes referred to as False Chameleons. This term is actually incorrect and is in reference to anoles, particularly the Cuban False Anole.
The process of shedding is called ecdysis.