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Chihuahua

Smooth-coated Chihuahua
The Chihuahua is the smallest breed of dog in the world, and it also has some roots that date back over a millennium. It is believed that this modern breed descended from the Techichi, a dog favored by the Toltecs. Images of these dogs appear around 800CE, with additional possible representations going back a thousand years earlier.

The modern breed comes from the state of Chihuahua, with the progenitor being found near the ruins of Casas Grandes in 1850. Over the next fifty years the breed would be developed, and by 1904 it was recognized by the AKC.

The modern standards describe a dog that stands between 6 and 10in tall, and weighs up to 6.6lbs (3kg). Despite what you may see from some breeders, "Teacup" and "Miniature" are not standard designations-- they are terms often used as marketing gimmicks by those trying to sell puppies.
Long-coated Chihuahua

Chichuahuas come with two different coat lengths-- long-haired and short-haired, and can have just about any color combination you can think of. Many breed clubs do not allow merle dogs, as that gene is linked to a number of health conditions.

Chihuahua temperament varies with the dog. On the whole they tend to be very brave and loyal to their owner, but some can take that protective nature and turn it into aggression if not properly trained. They are also not recommended for people with small children, as their size can put them at risk from rough play, and these interactions can make them nippy and high-strung. However, good training and socialization can lead to a very well-adjusted little dog, and they continue to be one of the most popular breeds in the world.
Status : Domesticated
Location : Mexico
Size : Height up to 10in (30cm)
Classification : Phylum : Chordata -- Class : Mammalia -- Order : Carnivora
Family : Canidae -- Genus : Canis -- Species : C. lupus -- Subspecies : C. l. familiaris

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