This flap-necked chameleon has just caught its prey. As soon as the chameleon has spotted its prey, it captures it with its long tongue. Its tongue, which can be propelled at a distance equal to its own length, is presented as a long tube terminated by a viscous bulb. To hunt, the chameleon propels its tongue by releasing the longitudinal muscles that function as a trigger. The trigger speed is around 1/25 of a second, that of the return about half a second.