Chihuahuas are named for the Mexican state of Chihuahua, and the AKC registered its first one in 1904. Pet Chihuahuas usually weigh 3 to 9 pounds, a bit above the 6-pound show limit, with a rounded apple-shaped head, large upright ears and a smooth or long coat in nearly any color. Many live 12 to 16 years, so adopting one is a long commitment.
Many Chihuahuas are devoted to one or two people and wary of strangers, with a big-dog confidence that can come out as barking or snapping when handled roughly. In Las Cruces, where the desert sun is strong and winter nights drop below freezing, a toy dog needs shade by day and a sweater after dark. Adult Chihuahuas of every age and personality are common in shelters, and spending time with a dog tells you more than breed traits do.