Kinyongia uthmoelleri and Trioceros quadricornis gracilor have red claws.
True chameleons include the following genera: Archaius, Bradypodion, Brookesia, Calumma, Chamaeleo, Furcifer, Kinyongia, Nadzikambia, Palleon, Rhampholeon, Rieppeleon and Trioceros.
Chameleons can project their tongue up to 2.2 times their body length.
Chameleons do not have external ears or a tympanic membrane, but they do have internal ears as well as degenerated middle ears. They do not hear well but they can detect low frequency sounds.
The word Furcifer is derived from the Latin word “furci” or forked.
Chameleons have a very poor sense of smell.
Chamaeleo namaquensis is found in the desert of Namibia. To cool off it will sometimes bury itself in the sand.
The word Bradypodion comes from the latin “bradus podos” or slow foot.
Trioceros schubotzi can be found at elevations as high as 4500m.
The oldest known chameleon fossil is from the extinct species Chamaeleo caroliquarti. It was found in Europe and is 26 million years old.