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.
The word Furcifer is derived from the Latin word “furci” or forked.
Kinyongia uthmoelleri and Trioceros quadricornis gracilor have red claws.
Trioceros schubotzi can be found at elevations as high as 4500m.
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!
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.
The process of shedding is called ecdysis.
Chameleons can project their tongue up to 2.2 times their body length.
The chameleon tongue accelerates towards its target at over 1642m per second. Chameleons rarely miss their intended food item.