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.
Kinyongia uthmoelleri and Trioceros quadricornis gracilor have red claws.
The word Rhampholeon is taken from the Latinized Greek “rhamphos leon” meaning crawling lion.
Chameleons have a very poor sense of smell.
Chameleons do have taste buds on their tongue but overall they have a poor sense of taste.
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 can project their tongue up to 2.2 times their body length.
Pygmy chameleons (Brookesia, Palleon, Rhampholeon and Rieppeleon sp.) often resemble dry leaves, mosses and branches.
Chameleon fossils have been found in central Europe and China, indicating they were once much more widespread than they are now.