The Australian Shepherd took shape on ranches in the American West in the 1800s, most likely from Spanish and Basque herding dogs crossed with collie types. Ranchers prized its stamina and quick thinking with sheep and cattle. Aussies are medium-sized, usually 40 to 65 pounds, with a weather-resistant double coat in merle, black or red, often with white and copper trim and eyes that can be blue, brown or a mix.
Many Aussies are bright, devoted and tireless, and happiest with a job to do. They bond tightly with family and can be reserved with strangers. Without daily exercise and mental work, that drive can turn into herding kids, chewing or barking. Expect moderate to heavy shedding and regular brushing, which suits adopters who enjoy training and an active routine.