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Abbreviation Legend
- (CE) - Criticially Endangered
- (CI) - Critically Imperiled
- (E) - Endangered
- (I) - Introduced
- (IM) - Imperiled
- (NT) - Near Threatened
- (T) - Threatened
- (V) - Vulnerable
- (**) - Recent Classification Change
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Chameleons (Chamaeleonidae) of the United States
Chamaeleonidae are distinguished by their zygodactylous feet, their prehensile tail, their laterally compressed bodies, their head casques, their projectile tongues, their swaying gait, and crests or horns on their brow and snout. Chameleons eyes are independently mobile, and because of this there are two separate, individual images that the brain is analyzing of the chameleon's enviroment. When hunter prey, they focus forward in coordination, affording the animal stereoscopic vision. The eyes are able to move laterally 180° and vertically 160° .
There are 4 species, representing 3 genus found in the United States, all of which are Introduced.
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