Dragons do not have external ears. As with snakes, an internal mechanism detects sounds. From the outside, the only evidence of this mechanism is a tiny hole between the scales. ... Dragons are, however, sensitive to pain.
In fact, they do have ears that are located on each side of their head. But they do not have external ear flaps. Their ears are just holes and are covered by feathers. The absence of external ear flaps gives the penguins a more streamline shape and minimizes drag as they swim through the water.Dec 7, 2010