Chameleons have a high midichlorian count.
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 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.
Chameleons have a very poor sense of smell.
Some chameleons play dead to avoid predation; this is called thanatosis.
The process of shedding is called ecdysis.
Pygmy chameleons (Brookesia, Palleon, Rhampholeon and Rieppeleon sp.) often resemble dry leaves, mosses and branches.
The word Kinyongia is from the Swahili word for chameleons: Kinyonga.
Chameleons have acrodont teeth meaning they are an extension of the jawbone. They are not set in sockets nor are they replaced.
Trioceros goetzei (Goetze’s Chameleon) emits an audible, high pitched whistle when threatened.