True chameleons include the following genera: Archaius, Bradypodion, Brookesia, Calumma, Chamaeleo, Furcifer, Kinyongia, Nadzikambia, Palleon, Rhampholeon, Rieppeleon and Trioceros.
Chameleons have a very poor sense of smell.
Some chameleons play dead to avoid predation; this is called thanatosis.
The largest chameleon species by weight is Calumma parsonii (Parson’s Chameleon).
Chameleons do have taste buds on their tongue but overall they have a poor sense of taste.
Pygmy chameleons have bicuspid claws where each claw has two points like a crescent moon.
The horns on a chameleon are made up of ringlike segments of inner bone covered by a hard keratin-like skin.
Chamaeleo namaquensis is found in the desert of Namibia. To cool off it will sometimes bury itself in the sand.
The smallest chameleon species is Brookesia micra with an adult length just over 1 inch (29mm). It hatches from an egg no bigger than a grain of rice!
Trioceros schubotzi can be found at elevations as high as 4500m.