Domesticated animal primarily used for transportation
The donkey or ass is a domesticated equine. It derives from the African wild ass, Equus africanus, and may be classified either as a subspecies thereof, Equus africanus asinus, or as a separate species, Equus asinus. It was domesticated in Africa some 5000–7000 years ago, and has been used mainly as a working animal since that time. . There are more than 40 million donkeys in the world, mostly in underdeveloped countries, where they are used principally as draught or pack animals.
https://en.wikipedia.org/wiki/Donkey