Onager of roads, railway lines, and fences required to support mining activities. The Asiatic wild ass is vulnerable to diseases, as well. A disease known as the "South African horse sickness" caused a major decline to the Indian wild ass population in the 1960s. However, the subspecies is no longer under threat to such disease and is continuously increasing in number. Various breeding programs have been started for the onager subspecies in captivity and in the wild, which increases their numbers to save the endangered species. The species is legally protected in many of the countries in which it occurs. The
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