Chihuahuas take their name from the Mexican state of Chihuahua, and the AKC registered its first one in 1904. Most weigh roughly 3 to 9 pounds, with an apple-shaped head, large upright ears and a smooth or long coat in nearly any color. Pet Chihuahuas often run heavier than the show standard, and many live 12 to 16 years.
Many Chihuahuas are bold, alert and strongly attached to one or two people, with a big-dog attitude. That can show up as barking, wariness of strangers or snapping when handled roughly, so gentle socialization matters. In St. Petersburg, that means calm introductions to larger dogs and new people on sidewalks and patios. Chihuahuas are among the most common small dogs in shelters, and adults of every age and personality are often waiting for homes.