Chihuahuas are named for the Mexican state of Chihuahua, and the AKC registered its first one in 1904. They're toy dogs with an apple-shaped head, large upright ears and either a smooth or long coat in nearly any color. Adoptable Chihuahuas often weigh more than the 6-pound show limit, and many land between 3 and 9 pounds.
Many are bold, alert and closely attached to one or two people, and some are wary of strangers or snap if handled roughly. Dogs vary, so a Chihuahua's own personality says more than the breed label. They often live 12 to 16 years, so adopting one is a long commitment. On Hilton Head Island, the main care points are summer heat, a sweater on cool winter mornings, and close supervision outdoors.