There is mentioned the case of a boy of six months on the left side of whose neck, over the middle anterior border of the sternocleidomastoid muscle, was a nipple-like projection 1/2 inch in length; a rod of cartilage was prolonged into it from a thin plate, which was freely movable in the subcutaneous tissue, forming a striking analogue to an auricle.

Moxhay cites the instance of a mother who was frightened by the sight of a boy with hideous contractions in the neck, and who gave birth to a child with two perfect ears and three rudimentary auricles on the right side, and on the left side two rudimentary auricles.
In some people there is an excessive development of the auricular muscles, enabling them to move their ears in a manner similar to that of the lower animals.

Of the celebrated instances the Abbe de Marolles, says Vigneul-Marville, bears witness in his "Memoires" that the Regent Crassot could easily move his ears.

Saint Augustine mentions this anomaly.
Double tympanitic membrane is spoken of by Loeseke.

There is sometimes natural perforation of the tympanum in an otherwise perfect ear, which explains how some people can blow tobacco-smoke from the ear.