Chihuahuas are named for the Mexican state of Chihuahua and are the smallest recognized dog breed, with adopted dogs usually weighing 3 to 9 pounds. They come in smooth and long coats and nearly any color, with an apple-shaped head and big upright ears. Coat care is light: a quick weekly brushing for smooth coats and a few brushings a week for long coats.
Personality varies from dog to dog, but many Chihuahuas bond tightly with one or two people, stay wary of strangers and bark to announce visitors. They're delicate, so gentle handling matters, and many do best in homes with adults or considerate older children. With a lifespan of 12 to 16 years, a Chihuahua is a long commitment, and warmth, dental care and patient house-training are worth planning for before you adopt.