It is found in Egypt, and in many others parts of Africa, in Georgia, and in India.

The power of changing color which it possesses is not really its most remarkable characteristic.

Far more worthy of notice are its slow pace, extraordinary form, awkward movements, vivacity, and control of eye, and marvellous rapidity of tongue.

It is the most grotesque of reptiles.

With protruding and telescopic eyes, that move at will in the most opposite directions, with an ungainly head, a cold, dry, strange-looking skin, and a prehensile tail, the creature slowly steals along a branch or twig, scarcely distinguishable from the substance along which it moves, and scarcely seeming to move at all, until it has come within reach of its prey.