Mule, Mule

Mules can be lightweight, medium weight, or even, when produced from draught horse mares, of moderate heavy weight.

Sometimes, mules whimper. The coats of mules come in the same varieties as those of horses. Common colors are sorrel, bay, black, and grey. Less common are white, roans (both blue and red), palomino, dun, and buckskin. Least common are paint mules or tobianos.

Source: Wikipedia > Mule