Called the King of Terriers, the Airedale is the largest of the terrier breeds. Mill and factory workers developed it in the mid-1800s in Yorkshire's Aire Valley, and it hunted rats and otters, swam well and later served as a messenger dog in World War I. The hard, wiry coat is black and tan, with a bearded face, folded ears and long legs. Most adults weigh 45 to 70 pounds.
Many Airedales are clever, confident and playful, with a stubborn streak and a sense of humor. They bond closely with their families, bore easily and do best with varied training and daily exercise. The coat sheds little but needs regular clipping or hand-stripping, and a strong urge to chase small animals is common. In Miami, that chase drive and the heat shape how the day is planned.