Chihuahuas are the smallest dog breed in the world and one of the oldest breeds in North America. A state in Mexico serves as the breed's namesake. More »

Chihuahuas can mate as soon as they are sexually active, but a responsible breeder will wait to start breeding his or her Chihuahuas until they have reached full sexual maturity at 12 to 15 months for males and 6 to 18 m... More »

Chihuahua puppies are born after a 63 day gestation period and the average litter contains one to three puppies. Larger litters are possible, but during pregnancy Chihuahuas must be monitored closely because they often r... More »

According to the American Kennel Club, Chihuahuas are a small, intelligent breed of dog notable for their large ears and expressive eyes. Chihuahuas are named after the Mexican state in which they were first found. Some ... More »

There is only one Chihuahua breed of dog, but there are seven varieties of Chihuahuas within that breed. These varieties are called long-coat, smooth-coat, apple-head, deer-head, fawn, teacup and pear-head. More »

Chihuahuas generally finish growing between 9 and 12 months old. Like many small dogs, Chihuahuas grow quickly in their first 12 weeks of life, after which time their growth gradually slows. More »

Affenpinschers, Chihuahuas, Pekingeses and Papillions are some of the smallest dog breeds in the world. They all are bred to be indoor dogs. More »

www.reference.com Pets & Animals Pets Dogs