Australian Shepherds took shape on ranches in the American West, not Australia, where long days moving sheep and cattle produced a medium-sized, athletic dog with a weather-resistant double coat. Colors run from blue and red merle to solid black or red, often with white and tan trim and eyes that can be brown, blue or a mix.
That working past means an Aussie wants a job. Many are loyal, quick learners that stay reserved with strangers, and without enough activity they may nip at heels, herd children or bark. The thick coat sheds heavily, especially when the seasons turn, so regular brushing is part of the deal. Aussies vary, so the dog in front of you matters more than the breed label.