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 Kinyongia is from the Swahili word for chameleons: Kinyonga.
True chameleons include the following genera: Archaius, Bradypodion, Brookesia, Calumma, Chamaeleo, Furcifer, Kinyongia, Nadzikambia, Palleon, Rhampholeon, Rieppeleon and Trioceros.
The word Calumma comes from the Latin word for covering. This genus consists of chameleons from Madagascar with occipital lobes.
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 Brookesia is named after the British naturalist Joshua Brookes.
Some chameleons play dead to avoid predation; this is called thanatosis.
The horns on a chameleon are made up of ringlike segments of inner bone covered by a hard keratin-like skin.
Kinyongia uthmoelleri and Trioceros quadricornis gracilor have red claws.
Chameleons have acrodont teeth meaning they are an extension of the jawbone. They are not set in sockets nor are they replaced.