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.
The word Kinyongia is from the Swahili word for chameleons: Kinyonga.
The word Calumma comes from the Latin word for covering. This genus consists of chameleons from Madagascar with occipital lobes.
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.
True chameleons include the following genera: Archaius, Bradypodion, Brookesia, Calumma, Chamaeleo, Furcifer, Kinyongia, Nadzikambia, Palleon, Rhampholeon, Rieppeleon and Trioceros.
Many chameleon species have a bright red, orange or yellow mouth. This conspicuous interior when displayed is used as a defense against predators.
Chameleons have acrodont teeth meaning they are an extension of the jawbone. They are not set in sockets nor are they replaced.