The Donkey(Equus Asinus) is a domestic animal from the equine family. His origin and evolução still a mistery nowadays, as we can see on the fact that we don't know for sure when his domestication happened. The most acient remains of domestic donkeys date from the end of the Bronze Age and come from the Egipt. After the Iron Age appeard grafical representation of the hybrid mule. On Europe is stated that his arrival occured on the fifth millenium before Christ, having expanded throughout the entire continente till the Acient Classical Age. The Donkey's structure varies according to the climate and the breed, being on average, on our country, 1.35 to 1.45 meters long(From the ears to the beginning of the tail), and from 1.10 to 1.15 meters high(Shoulders level). The Donkey, in average, lives from 15 to 18 years, but can live till 30 to 35 years or even more. A donkey takes from 3 to 4 years to fully develop. Their gestation period lasts for about a year. His fur varies between gray and reddish brown, varying also according to the animal's size. His most distinguishing marks are the size of it's ears and his brays. Has a curiosity don't forget that the donkey is the animal choice of Sancho Pança, the squire of the mill's Greateast knight Dom Quixote de La Mancha (Cervantes).