Chameleons have elastic tissue in their tongues that allow them to contract the muscles.#shorts

ScienceFacts
Chameleons have flexible cells in their tongues that permit them to contract the muscles in their tongue, like an individual pulling back the string of a bow. Comparable to the launch of the bowstring driving an arrowhead onward the chameleon launches its tongue muscle mass, permitting it to spring onward.

Chameleonschameleonveiled chameleon