This is Yoda, a very unusual cat born with an extra set of ears. The extra ears are merely flaps of skin that do not detect sound and are believed to be the result of a genetic mutation. Multi-eared cats are rare, but not unheard of. In December 1978 a cat with four ears was reported in Chattanooga, Tennessee, USA. A four-eared cat was exhibited at a British cat show in the late 1990s. In Germany in 2006 there was a kitten with 2 extra ears born on a farm, and Russia in the same year, reported a kitten born with seven ears! The deformity was first studied in 1957 and is called, unsurprisingly, "four-ears". For more information and cases, check out Feline Medical Curiosities