The Blue Heeler, also known as the Australian Cattle Dog, is a medium-sized breed known for its intelligence and agility. Developed in Australia for herding cattle, they are highly energetic and require regular exercise. Their short, dense coat is typically blue or mottled, providing protection against harsh weather. These dogs are known for their loyalty and protective nature, making them excellent companions and working dogs. They thrive in active households and are often used in various dog sports. Due to their strong instincts, early training and socialization are essential for a well-rounded temperament.