Called the King of Terriers, the Airedale is the largest terrier, developed in the mid-1800s in Yorkshire's Aire Valley from old black-and-tan terriers and the Otterhound. It was built to hunt rats and otters and to swim, and it later served as a messenger dog in World War I. Adults usually weigh 45 to 70 pounds and stand 22 to 24 inches, with a hard, wiry black-and-tan coat and a bearded face.
In Albuquerque, the coat handles dry air and sunshine well, though it needs weekly brushing and professional clipping or hand-stripping every six to eight weeks. Airedales are clever, confident and sometimes stubborn, so they respond best to varied training and daily work. Many chase small animals, which matters on Open Space trails where coyotes and other wildlife live. Dogs vary, so each Airedale's own personality counts for more than the breed description.