Onager known as the Persian onager. Until this day, the species share the same name, "onager". The onager is a member of the subgenus "Asinus", belonging to the genus "Equus" and is classified under the family Equidae. The species was described and given its binomial name "Equus hemionus" by German zoologist Peter Simon Pallas in 1775. The Asiatic wild ass, among Old World equids, existed for more than 4 million years. The oldest divergence of "Equus" was the onager followed by the zebras and onwards. A new species called the kiang ("E. kiang"), a Tibetan relative, was previously considered to be
Set animal I and Seti II and the Twentieth Dynasty king Setnakhte and his descendants. The god Set was usually depicted as a man with a head resembling that of the sha, usually with a long, slightly curved nose, and erect ears, squared at the tops. Occasionally he was represented in animal form as the sha itself, although he was also depicted in the form of an onager or as a black pig. Other animals sacred to Set included the antelope, hippopotamus, wild boar, crocodile, and scorpion, all of which represented strength, power, protection, or wildness. The sha was also used as