"The smallest breed of dog, the Chihuahua has a controversial history". ("Chihuahua : Dog Breed Selector : Animal Planet") There are several theories about the origin of the Chihuahua. Some believe that the Chihuahua originated in China, while others believe that they came from Central and South America. Today, the Chihuahua is becoming one of the most popular breeds. This is mainly due to their small size, loyalty and overall; cuteness.
("Chihuahua")