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 Calumma comes from the Latin word for covering. This genus consists of chameleons from Madagascar with occipital lobes.
The largest chameleon species by weight is Calumma parsonii (Parson’s Chameleon).
The word Rieppeleon is named after the scientist Olivier Rieppel.
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 word Bradypodion comes from the latin “bradus podos” or slow foot.
Pygmy chameleons have bicuspid claws where each claw has two points like a crescent moon.
The word Kinyongia is from the Swahili word for chameleons: Kinyonga.