Dun is the same as buckskin, or so I’ve heard people say. Not at all! Although it may look similar at first glance, it is very different. A dun horse carries a dilution gene that washes out its body color, leaves color on its points, and causes darker “primitive” markings. These markings are a stripe down the back that extends into the tail (dorsal stripe), horizontal stripes on the legs (leg bars or zebra stripes), bars on the ears, and strong shading across the withers and shoulder (shoulder bars). The face is usually darker and sometimes there are concentric rings on the forehead. These markings can be very strong, or hardly noticeable if the horse has another dilution at work.