Chameleons have a very poor sense of smell.
The word Calumma comes from the Latin word for covering. This genus consists of chameleons from Madagascar with occipital lobes.
Furcifer labordi (Labord’s Chameleon) has the shortest lifespan of only 4-5 months. It also has the shortest lifespan of any tetrapod!
Trioceros goetzei (Goetze’s Chameleon) emits an audible, high pitched whistle when threatened.
The oldest known chameleon fossil is from the extinct species Chamaeleo caroliquarti. It was found in Europe and is 26 million years old.
Chameleon fossils have been found in central Europe and China, indicating they were once much more widespread than they are now.
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 largest chameleon species by weight is Calumma parsonii (Parson’s Chameleon).
The horns on a chameleon are made up of ringlike segments of inner bone covered by a hard keratin-like skin.
The word Rhampholeon is taken from the Latinized Greek “rhamphos leon” meaning crawling lion.