The Appaloosa was established as a true breed in the American melting pot. The Nez Perce Indians contributed to the Appaloosa horse of today. They were the only Native Americans to selectively breed their horses. Appaloosas are normally recognized by their colorful coat patterns, but they also have some unique characteristics. Coat patterns, white sclera, mottles skin and striped hooves are all characteristics of the Appaloosa.