The Saluki (Persian hound) is a standardised breed of dog, developed from sighthounds – dogs that hunt primarily by sight rather than scent – that was once used by nomadic tribes to run down game animals. The dog was originally bred in the Fertile Crescent. The modern breed is typically deep-chested and long-legged, and similar dogs appear in medieval and ancient art. A related standardised breed is the north African Sloughi. Salukis are sighthounds – hunting by sight more than scent or sound – and run their quarry down to kill or retrieve it. The normal size range for the modern breed is 23–28 inches (58–71 cm) high at the withers and 35–65 pounds (16–29 kg) in weight. The saluki does not typically enjoy rough games or activities such as retrieving balls, but does enjoy soft toys. Early socialisation will help prevent timidity and shyness in later life.