The Przewalski's Horse, also known as the Asian Wild Horse is the only true wild horse breed in the world.Standing about thirteen hands this horse is known for its very primitive look. It is predominately dun, sometimes with zebra stripes on the lower legs. Rather coarse in appearance, the head is large and heavy, the profile convex. The mane stands upright, measuring up to eight inches in length. The eyes are set high and the muzzle is paler than the rest of the coat. The Asian Wild Horse is essentially a member of the Equus caballus, although it bears more resemblance to the Mule. Their temperament in the wild is fierce and aggressive and is said to be migratory.