The word Rieppeleon is named after the scientist Olivier Rieppel.
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!
Chamaeleo namaquensis is found in the desert of Namibia. To cool off it will sometimes bury itself in the sand.
Some chameleons play dead to avoid predation; this is called thanatosis.
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.
Chameleons change color by rearranging a lattice of nanocrystals in one of their top layers of skin cells called iridophores. Chameleons can then stretch this layer, broadening the nanocrystalline lattice, thereby causing it to reflect a different wavelength of light.
Chameleon fossils have been found in central Europe and China, indicating they were once much more widespread than they are now.
Pygmy chameleons have bicuspid claws where each claw has two points like a crescent moon.
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.