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 lambei Furthermore, evidence from "E. lambei" mtDNA now proves that modern horses are not so far removed from their ancient ancestors. Many scientists believe that a good argument can be made that "E. caballus", too, should receive protection as a form of native wildlife in North America. However, this topic is still highly debated by wild horse management agencies. This debate has significant implications to wildlife management in North America, including protection and conservation for modern species. Equus lambei Equus lambei (common names include Yukon horse, and Yukon wild horse) is an extinct species of the genus "Equus". "Equus lambei" ranged