The Rhodesian Ridgeback is a dog breed bred in the Southern Africa region. The original breed standard was drafted by F. R. Barnes, in Bulawayo, Southern Rhodesia. The Khoikhoi people who lived in the Cape Peninsula when the Dutch began trading with the area during the mid 17th century, had a hunting dog which was described as ugly, but noted for its ferocity when acting as a guard dog. This dog measured approximately 18 inches (46 cm) at the withers, with a lean but muscular frame. The ears have been described both as erect and hanging, but the most distinctive feature was the length of hair often growing in the reverse direction along its back. They require consistent training and correct socialization; they are often not the best choice for inexperienced dog owners. Rhodesian Ridgebacks are strong-willed and confident dogs. They are protective of their owners and families; if trained well, they can be excellent guard dogs.