Despite the name, the Australian Shepherd took shape on ranches in the American West during the 1800s, likely from Spanish and Basque herding dogs mixed with collie types that arrived with sheep shipped from Australia. Ranchers valued its stamina and quick thinking for moving sheep and cattle, and rodeo performances in the mid-1900s brought it wider fame. Aussies are medium-sized, with a weather-resistant double coat in merle, black or red, often with white and copper trim and striking blue or mixed eyes.
Many Aussies are intelligent, devoted and tireless, happiest with a job to do. They tend to bond tightly with family and may be reserved with strangers. Without daily exercise and mental work, that drive can turn into herding children, chewing or barking, so they best suit active adopters who enjoy training.