Fennec

The fennec fox (Vulpes zerda) is a small nocturnal fox found in the Sahara of North Africa. Its most distinctive feature is its unusually large ears. The name "fennec" comes from the Arabic word for fox, and the species name zerda has a Greek origin that refers to its habitat. The fennec is the smallest species of canid in the world; coat, ears and kidney functions have adapted to a high-temperature, low-water, desert environment. In addition, its hearing is sensitive enough to hear prey moving underground.

http://en.wikipedia.org/wiki/Fennec_fox