The Smartest Dog Breeds in the World

3. Australian Cattle Dog

Also known as blue heelers, red heelers or Queensland heelers, these scrappy herding dogs were created when early European settlers in Australia bred their herding breeds to dingoes, the wild dogs of Australia. The result was a tough, athletic and clever breed that has the energy to work all day in harsh conditions. These dogs are notoriously attached to their owners, but they have an independent streak that often causes them to look for loopholes to outsmart their humans. They're great hiking and running companions, and they excel at trick training, agility, and herding.