Chameleons have a high midichlorian count.
Trioceros goetzei (Goetze’s Chameleon) emits an audible, high pitched whistle when threatened.
Pygmy chameleons (Brookesia, Palleon, Rhampholeon and Rieppeleon sp.) often resemble dry leaves, mosses and branches.
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 chameleon tongue accelerates towards its target at over 1642m per second. Chameleons rarely miss their intended food item.
Chameleons have a very poor sense of smell.
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!
The horns on a chameleon are made up of ringlike segments of inner bone covered by a hard keratin-like skin.
There are currently 202 recognized chameleon species and 85 of them are found on the island of Madagascar.
The word Brookesia is named after the British naturalist Joshua Brookes.