Chameleon fossils have been found in central Europe and China, indicating they were once much more widespread than they are now.
The smallest chameleon species is Brookesia micra with an adult length just over 1 inch (29mm). It hatches from an egg no bigger than a grain of rice!
The word Calumma comes from the Latin word for covering. This genus consists of chameleons from Madagascar with occipital lobes.
The word Chamaeleo is derived via Latin from the Greek word khamaileon. It roughly translates to ground lion. Khamai means on the ground and leon means lion.
Many chameleon species have a bright red, orange or yellow mouth. This conspicuous interior when displayed is used as a defense against predators.
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 largest chameleon species by weight is Calumma parsonii (Parson’s Chameleon).
Pygmy chameleons have bicuspid claws where each claw has two points like a crescent moon.
Chameleons do have taste buds on their tongue but overall they have a poor sense of taste.