Chameleons have acrodont teeth meaning they are an extension of the jawbone. They are not set in sockets nor are they replaced.
The oldest known chameleon fossil is from the extinct species Chamaeleo caroliquarti. It was found in Europe and is 26 million years old.
The word Rhampholeon is taken from the Latinized Greek “rhamphos leon” meaning crawling lion.
There are currently 202 recognized chameleon species and 85 of them are found on the island of Madagascar.
The word Rieppeleon is named after the scientist Olivier Rieppel.
The process of shedding is called ecdysis.
Chameleons have laterally compressed bodies. This enables them to warm up quickly by presenting a larger surface area to the sun. It also helps some chameleon species blend in among the similarly shaped leaves in their environment.
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.
Chameleons have a very poor sense of smell.