The undisputed "King of Terriers,"
the Airedale Terrier is the largest
and hardiest of the terriers, and an
all around useful dog. The breed's
coat is hard, dense and wiry, with a
softer undercoat, and comes in both
tan and black and tan and grizzle.
This breed was one of the first used
for police duty in Germany and
Great Britain and has also been
popular with Presidents, including
Woodrow Wilson, Warren Harding
and Calvin Coolidge.