The Dun horse is a color variation in horses characterized by a yellowish or tan coat, often with a darker mane and tail. This coat color can range from light cream to deep gold, and it typically features a dorsal stripe running down the back, as well as zebra-like stripes on the legs. The dun coloration is a result of a specific gene that dilutes the base coat color. Dun horses can be found in various breeds, including Quarter Horses, Mustangs, and Arabians. The dun gene can also produce different shades, such as grullo (a grayish dun) and red dun (a reddish hue). This unique coloration makes dun horses popular among equestrians and horse enthusiasts.