Chameleon (see Lizard). A chameleon has the distinct trait of being able to change its color to fit in with its environment so predators cannot find it.

Source: [Anon-Animals]

CHAMELEON. Le 11:30, a kind of lizard. Its body is about six inches long: its feet have five toes each, arranged like two thumbs opposite to three fingers: its eyes turn backwards or forwards independently of each other. It feeds upon files, which it catches by darting out its long, viscous tongue. It has the faculty of inflating itself at pleasure with air; and of changing its color, from its ordinary gray to green, purple, and even black when enraged.

Source: [AmTrac]

Chameleon. A species of lizard which has the faculty of changing the colour of its skin. It is ranked among the unclean animals in Lev 11:30, where the Hebrew word so translated is coah (R.V., “land crocodile”). In the same verse the Hebrew tanshemeth, rendered in Authorized Version “mole” is in Revised Version “chameleon,” which is the correct rendering. This animal is very common in Egypt and in the Holy Land, especially in the Jordan valley.

Source: [Easton]