Their forked, transparent tongue is fringed with tiny hairs at the tip. It curls into a "W" shape in the back.
Did you notice that the hummingbird laps up nectar with its tongue by extending it out and drawing it back? This action is the same one used by dogs and cats. However, hummingbirds do this really fast; up to 13 times per second! These specialized adaptations help hummingbirds survive.