Chameleons do have taste buds on their tongue but overall they have a poor sense of taste.
Chameleons have acrodont teeth meaning they are an extension of the jawbone. They are not set in sockets nor are they replaced.
Many chameleon species have a bright red, orange or yellow mouth. This conspicuous interior when displayed is used as a defense against predators.
The horns on a chameleon are made up of ringlike segments of inner bone covered by a hard keratin-like skin.
Some chameleons play dead to avoid predation; this is called thanatosis.
The chameleon tongue accelerates towards its target at over 1642m per second. Chameleons rarely miss their intended food item.
Chameleon fossils have been found in central Europe and China, indicating they were once much more widespread than they are now.
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.
Trioceros schubotzi can be found at elevations as high as 4500m.
The word Rieppeleon is named after the scientist Olivier Rieppel.