How long is a chameleon’s tongue?

A chameleon is a kind of lizard that eats small insects. It uses its unique tongue to catch its prey. The tongue is coiled inside its mouth. During catching its prey, the chameleon projects its tongue out with a force which the scientists call the ballistic mechanism to capture the prey. The tongue can project up to double the size of the chameleon’s body. Sometimes the tongue may extend up to 600 per cent of its original resting size.