Dog sledding is the traditional means of transportation of the peoples of the North.

The American Staffordshire Terrier breed was formed near the end of the 19th century.

The American Bulldog was once bred as a working breed. Its closest ancestor is considered to be the English Bulldog, which was specifically used for herding livestock.

Despite their name, Australian Shepherds were bred in the United States in the 20th century by crossing Pyrenean Shepherds and Collies.