Question: dog breeds that are merle?
Answer: Merle is a distinguishing marking of several breeds, particularly the Australian Shepherd and Catahoula Leopard Dog, and appears in others, including the Koolie, German Coolies in Australia, the Shetland Sheepdog, various collies, the Welsh Corgi (Cardigan), the Pyrenean Shepherd, the Bergamasco Sheepdog, the Old ...