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.
The word Rhampholeon is taken from the Latinized Greek “rhamphos leon” meaning crawling 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 have a high midichlorian count.
The chameleon tongue accelerates towards its target at over 1642m per second. Chameleons rarely miss their intended food item.
Some chameleons play dead to avoid predation; this is called thanatosis.
Chameleons have acrodont teeth meaning they are an extension of the jawbone. They are not set in sockets nor are they replaced.
Pygmy chameleons have bicuspid claws where each claw has two points like a crescent moon.
The largest chameleon species by weight is Calumma parsonii (Parson’s Chameleon).
Chameleons do have taste buds on their tongue but overall they have a poor sense of taste.