Anatomy: The small-eared zorro is about 28 to 38 inches (72-100 cm) long with a tail that is 10 to 14 inches (25-35 cm) long. It weighs from 20 to 22 pounds (9-10 kg). Males are smaller than females. The short, thick fur is dark grey to black on the sides; the belly is reddish-brown mixed with white. There is a dark band running along the back and tail, plus a light-colored patch at the underside of the base of the tail. The long, bushy tail, sometimes called a sweep, is black. It helps the fox change direction quickly and keeps the fox's feet and nose warm when it curls up to sleep. Like all foxes, it has sharp, curved claws, sharp teeth, and insulating fur.

Diet: The diet of this fox is unknown.