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Chihuahua
Origin	Unknown (Discovered in Mexico)
Kennel club standards Fédération Cynologique Internationale standard
Dog (domestic dog)

This article is about the breed of dog. For other uses, see Chihuahua (disambiguation).

The Chihuahua is the smallest breed of dog in the world and is named after the state of Chihuahua in Mexico.

Appearance

Chihuahuas are best known for their small size, large eyes, and large, erect ears. The AKC (American Kennel Club) recognizes two varieties of Chihuahua: the long-coat and the smooth-coat. Many long-coat Chihuahuas have very thin hair, but other long coats have a very dense, thick coat.

Standards

Breed standards for this dog do not generally specify a height, only a weight and a description of their overall proportions. As a result, height varies more than within many other breeds. Generally, the height ranges between 6 and 10 inches (15 to 25 cm) at the withers. However, some dogs grow as tall as 12 to 15 inches (30 to 38 cm). AKC show dogs (American standard) must weigh no more than 6.0 lb (2.7 kg). The international FCI standard calls for dogs ideally between 1.5 and 3.0 kg (3.3 to 6.6 lb), although smaller ones are acceptable in the show ring. However, pet-quality Chihuahuas (that is, those bred or purchased as companions rather than show dogs) can, and do, range above these weights, to 10 pounds (4.5 kg), or even more if they have large bone structures or are allowed to become overweight. This does not mean, however, that they are not purebred Chihuahuas, it only means that they do not meet the requirements to enter a conformation show. Oversize Chihuahuas are seen in some of the best, and worst, bloodlines.

Colors

The AKC Chihuahua standard lists under color: "Any color-Solid, marked or splashed". This allows for all colors from solid blacks to solid whites, spotted, or a variety of other colors and patterns. A few examples are Fawn, Red, Cream, Chocolate, Blue, and Black.

Patterns, all with or without white markings, include:

• Sable
• Irish spotting
• Piebald spotting
• Extreme white spotting
• Brindle
• Masks
• Merle
• Tan points

Classifying Chihuahua colors can be complicated due to the large number of possibilities. Examples would be a Blue Brindle or a Chocolate and Tan. Colors and patterns can combine and affect each other, resulting in a very high degree of variation. That said, the classic Chihuahua color remains Fawn. No color or pattern is considered more valuable than the others. Although blue is considered rare, it is all just a matter of personal preference.

Temperament

Chihuahuas are prized for their devotion, ferocity and personality. Their curious nature and small size make them easily adaptable to a variety of environments, including the city and small apartments. Chihuahuas are often stereotyped as high-strung, though it has been shown that correct training and socialization can result in an outstanding companion animal.

Chihuahuas are not well-suited as small children's pets because of their size, temperament and tendency to bite when frightened. It is recommended that children be 12 years or older before adding a chihuahua to one's home. Also, many Chihuahuas focus their devotion on one person, becoming overly jealous of that person's human relationships. This can be mitigated through socialization. Chihuahuas also tend to have a "clannish" nature, often preferring the companionship of other Chihuahuas over other dogs.

Chihuahuas seem to have no concept of their own size and may fearlessly confront larger animals, which can result in injury.

http://seattletimes.nwsource.com/html/nationworld/2003801630_chihuahua23.html

Health

This breed requires expert veterinary attention in areas such as birthing and dental care. Chihuahuas are also prone to some genetic anomalies, often neurological ones, such as epilepsy and seizure disorders. Chihuahuas, and other toy breeds, are also prone to the sometimes painful disease Hydrocephalus. It is often diagnosed by the puppy having an abnormally large head during the first several months of life, but other symptoms are more noticeable (since "a large head" is such a broad description). Chihuahua puppies exhibiting Hydrocephalus usually have patchy skull platelets rather than a solid bone, and typically are lethargic and do not grow at the same pace as their siblings. A true case of Hydrocephalus can be diagnosed by a veterinarian, though the prognosis is grim.

Chihuahuas are also known for their moleras, a soft spot in their skulls. Chihuahuas are the only breed of dog to be born with an incomplete skull. The molera does fill in with age, but great care needs to be taken during the first six months until the skull is fully formed. Many veterinarians are not familiar with Chihuahuas as a breed, and mistakenly confuse a molera with hydrocephalus. The Chihuahua Club of America has issued a statement regarding this often deadly misdiagnosis .

Chihuahuas can also be at risk for hypoglycemia, or low blood sugar. Left unattended, hypoglycemia can lead to coma. Chihuahuas are also prone to eye infections due to their large, round, protruding eyes and their relatively low ground clearance. Chihuahuas also have a tendency to tremble but this is not a health issue, rather it takes place when the dog is stressed or excited. One reason for this may be because small dogs have a higher metabolism than larger dogs and therefore dissipate heat faster. Although figures often vary, as with any breed, the average lifespan for a Chihuahua is approximately 8 to 18 years of age.

Chihuahuas are sometimes picky eaters, and care must be taken to provide them with adequate nutrition. At the same time, care must be exercised not to overfeed this tiny breed. Overweight Chihuahuas are prone to joint injuries, tracheal collapse, chronic bronchitis, and shortened life span.

Clubs

Because Chihuahuas are such a popular breed, there have been a few clubs made about them. These clubs talk about the breed, host competitions, etc. Sometimes they have information on adoption for members. A couple of clubs are ones such as the Chihuahua Club of America, (CCA) or the British Chihuahua Club. Also, quite a few online forums have been made about these dogs.

Famous Chihuahuas

• Bruiser (real name: Moonie), Elle Woods' companion in the Legally Blonde movies.
• Danka Kordak-The smallest dog living, in terms of height, is a long-haired chihuahua called Danka Kordak Slovakia, who measured 13.8 cm (5.4 in) tall and 18.8 cm (7.4 in) long on May 30, 2004 and is owned by Ing. Igor Kvetko of Revúca, Slovakia.
• Lou, a chihuahua featured on the television show The Soup.
• Madame Shirley the Medium is an old-fortune teller chihuahua featured in a TV Show Cartoon, Courage the Cowardly Dog.
• Mimi, Sharon Osbourne's chihuahua.
• Pepito, Xavier Cugat's chihuahua immortalized in the children's book Pepito the Little Dancing Dog: The Story of Xavier Cugat's Chihuahua.
• Ren Höek, of Ren and Stimpy fame.
• The Spooky Chihuahua from Invader Zim.
• The Taco Bell chihuahua.
• Tinkerbell Hilton and Bambi, companions of Paris Hilton. Tinkerbell is the "author" of "Tinkerbell Hilton Diaries".
• Tito from Oliver & Company.
• Geraldo, Max Shreck's chihuahua in Batman Returns.
• Wheely Willy, a paraplegic chihuahua from Long Beach, California who has become a celebrity as the subject of two bestselling children's books.

External links

• Chihuahua Club of America
• British Chihuahua Club
• Chihuahua Puppies Guide
• Video of the Taco Bell Chihuahua
• UK Chihuahuas
• AKC Chihuahua page
• Tiny Chihuahua saves life of 1-year-old boy

References

1. Meet The World's Smallest Dog, NBC10.com, retrieved on July 26, 2007.

• Articles lacking sources from February 2007
• Toy dogs
• Companion dogs
• Latin American dogs