Many chameleon species have a bright red, orange or yellow mouth. This conspicuous interior when displayed is used as a defense against predators.
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 horns on a chameleon are made up of ringlike segments of inner bone covered by a hard keratin-like skin.
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.
Trioceros schubotzi can be found at elevations as high as 4500m.
Kinyongia uthmoelleri and Trioceros quadricornis gracilor have red claws.
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.
The word Furcifer is derived from the Latin word “furci” or forked.
Chameleons can project their tongue up to 2.2 times their body length.
The process of shedding is called ecdysis.