Chihuahuas are the smallest dog breed in the world, and are one of the oldest as well. They are ideal lap dogs, with loving and sweet personalities. Chihuahuas tend to attach quickly and strongly to their owners, and do best with older children because of their delicate bone structure and small size. These loyal, sassy dogs come in two varieties (smooth coat and long coat), and typically have a medium energy level that is perfect for living in either a home or an apartment.
While the Chihuahua is considered the world's smallest dog, the breed is known for its "big dog personality." Chihuahuas are intelligent and affectionate, but often rule their households with a confident and willful attitude.
This feisty dog is thought to have descended from a Central or South American dog known as the Techichi of the Toltec civilization.