Onager never been domesticated. They are among the fastest mammals, as they can run as fast as 64 km/h (40 mph) to 70 km/h (43 mph). The onager is closely related to the African wild ass, as they both shared the same ancestor. The kiang, formerly considered a subspecies of "Equus hemionus", diverged from the Asiatic wild ass and has been acknowledged as a distinct species. The onager formerly had a wider range from southwest and central to northern Asian countries, such as Israel, Saudi Arabia, Iraq, Jordan, Syria, Afghanistan, Russia, and Siberia. During early 20th century, the species lost most
Emotional support animal support animals to one animal per ticketed passenger. The main controversies are the behavior of some animals, harms to other people, the problem of widespread fraud, and the open scientific question about whether emotional support animals provide significant benefit. An emotional support animal may cause problems that a trained assistance dog may not. For instance, due to the lack of training, an emotional support animal may bark at and smell other people, whereas service dogs are trained not to do so. People with a different type of invisible disability – allergy to animal dander – have suffered from allergic attacks