Australian Cattle Dogs, also called Blue Heelers or Queensland Heelers, were developed in nineteenth-century Australia to drive cattle over long distances in heat and dust. Settlers crossed collie-type herding dogs with dingoes, producing a compact, muscular dog of about 35 to 50 pounds with a weatherproof double coat in blue or red speckle.
Heelers tend to be loyal, alert and clever, often bonding closely with one person and staying wary of strangers. Strong herding instincts can show up as nipping at heels, chasing bikes or bossing other pets. In Clarksville, that makes a daily job, such as long greenway runs, training and scent games, as important as a yard. With that outlet, many are hardy companions who live 12 to 16 years.