Many chameleon species have a bright red, orange or yellow mouth. This conspicuous interior when displayed is used as a defense against predators.
There are currently 202 recognized chameleon species and 85 of them are found on the island of Madagascar.
Chameleons have a very poor sense of smell.
The oldest known chameleon fossil is from the extinct species Chamaeleo caroliquarti. It was found in Europe and is 26 million years old.
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.
Chameleons can project their tongue up to 2.2 times their body length.
The word Furcifer is derived from the Latin word “furci” or forked.
Trioceros schubotzi can be found at elevations as high as 4500m.
Pygmy chameleons have bicuspid claws where each claw has two points like a crescent moon.
Chameleons have acrodont teeth meaning they are an extension of the jawbone. They are not set in sockets nor are they replaced.