Chihuahuas are named for the Mexican state of Chihuahua and are the smallest recognized dog breed, usually 3 to 9 pounds. They have an apple-shaped head, large upright ears and either a smooth or long coat in nearly any color. Pet Chihuahuas often run heavier than the 6-pound show limit, and many live 12 to 16 years.
The personality is large for the size. Many Chihuahuas are devoted to one or two people, watchful and wary of strangers, though each dog varies in confidence and energy. In Saint Paul, that usually means a dog who announces every neighbor in the hallway and needs a warm coat from fall through early spring. Smooth coats need little brushing, while long coats need a few brushings a week.