Hearing

Chameleons have the poorest hearing except one species of lacenta from Persia. Shouting next to the chameleon would not arouse him even when he is awake, he disregards most sounds. They only respond to ground or branch borne sounds. How sound is transmitted into the chameleon's ear In the opening of the chameleon's ear, a membrane on the side of the skull called the auditory area registers airborne vibrations and transmits them to a delicate bone structure. Embedded in tissues within the skull, the plate relays the vibration down a twisting and constricted pathway leading to the inner ear.

Chameleons have very limited hearing, tuning in to frequencies between 200 and 600 Hz as compared to most other lizards from 100 to 4000 Hz, and to humans 20 to 20,000 Hz. Chameleons cannot hear danger or food approaching.