The Australian Cattle Dog (ACD), or simply Cattle Dog, is a breed of herding dog originally developed in Australia for droving cattle over long distances across rough terrain. This breed is a medium-sized, short-coated dog that occurs in two main colour forms. It has either brown or black hair distributed fairly evenly through a white coat, which gives the appearance of a 'red' or 'blue' dog. Known as a 'wash and wear' dog, the Australian Cattle Dog requires little grooming, and an occasional brushing is all that is required to keep the coat clean and odour-free. Even for the show ring it needs no more than wiping down with a moist cloth. It is not a year-round shedder but blows its coat once a year (twice in the case of intact females) and frequent brushing and a warm bath during this period will contain the shedding hair. As with all dogs, regular attention to nails, ears and teeth will help avoid health problems. Cattle Dogs have more injuries than illnesses.