Donkey the environment. They may compete with livestock and native animals for resources, spread weeds and diseases, foul or damage watering holes and cause erosion. Few species of ass exist in the wild. The African wild ass, "Equus africanus", has two subspecies, the Somali wild ass, "Equus africanus somaliensis", and the Nubian wild ass, "Equus africanus africanus", the principal ancestor of the domestic donkey. Both are critically endangered. Extinct species include the European ass, "Equus hydruntinus", which became extinct during the Neolithic, and the North African wild ass, "Equus africanus atlanticus", which became extinct in Roman times. There are five subspecies
Equus (play) Equus (play) Equus is a play by Peter Shaffer written in 1973, telling the story of a psychiatrist who attempts to treat a young man who has a pathological religious fascination with horses. Shaffer was inspired to write "Equus" when he heard of a crime involving a 17-year-old who blinded six horses in a small town near Suffolk. He set out to construct a fictional account of what might have caused the incident, without knowing any of the details of the crime. The play's action is something of a detective story, involving the attempts of the child psychiatrist Dr. Martin