Despite the name, the Australian Shepherd was developed on ranches in the American West during the 1800s, from Spanish and Basque-type herding dogs crossed with collie types. It's a medium-sized dog, usually 40 to 65 pounds, with a weather-resistant double coat in merle, black or red, often with white and copper trim and sometimes striking blue eyes.
Many Aussies are intelligent, loyal and happiest with a job to do. They bond closely with family and may be reserved with strangers. Without daily exercise and mental work, that herding drive can turn into nipping at heels, chewing or barking. A steady routine of walks, training and play suits them better than an occasional big outing, and heavy seasonal shedding comes with the coat, so regular brushing is part of life with an Aussie.