domestic equine hybrid between a male donkey and female horse

A mule is a horse-donkey hybrid (a mix of two different animals). It is the child of a female horse and a male donkey.[1]

A mule

A mule is generally sterile. Although it is extremely unlikely for a mule to become pregnant (less than 300 reported cases worldwide), it is possible.

Mules vary widely in size, from small miniature mules under 125 cm (50 in) to large and powerful mules standing up to 180 cm (70 in) at the shoulders. The average weight range is between about 370 and 460 kg (820 and 1000 lb).

A mule is generally larger than a donkey and smaller than a horse.  A mule has the long ears, thin limbs, small hooves and the short hair of the donkey, while its height, the shape of the neck and body, and its teeth are more similar to those of the horse. The color of its coat can be any color seen in the horse or in the donkey, which can be white, grey, brown or black.

They are used mostly for pulling carts and transportation. As trucks with four-wheel drive have become common, mules are little used for transport except in places without roads.


  1. "Mule". Merriam-Webster Ditionary. Archived from the original on 2012-03-15. Retrieved 2007-05-31.