🐕 Medium · United States
A strikingly marked, highly intelligent working dog with enormous exercise needs — despite its trendy status, not a beginner's dog.

Despite its name, the Australian Shepherd (Aussie) is an American herding breed. It is eager to learn, affectionate with its own people, and reserved toward strangers. Its drive to work and protective instinct are both strongly developed.
The Aussie needs a great deal of exercise and intensive mental work — dog sports, tracking, trick training, or herding. Without a meaningful task, its urge to move and control can become a problem. As with the Border Collie, mental stimulation matters more than pure running.
The medium-length coat, often merle-colored, has an undercoat and needs regular brushing; it sheds heavily during coat change. Merle-to-merle pairings should be avoided due to severe associated health defects.
Not well suited to beginners. Films and social media have turned the Aussie into a fashionable breed, but it frequently overwhelms inexperienced owners. It needs clear leadership, plenty of time, and a genuine job to do.
Breed-typical conditions include the MDR1 gene defect (testing mandatory), hip/elbow dysplasia, inherited eye diseases (CEA, cataracts), and epilepsy. Merle carriers risk deafness and blindness if paired incorrectly.
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This information is for general guidance and does not replace veterinary or breeder advice. Temperament and health vary individually within every breed.