The
Chihuahua is the
smallest dog breeds and is named after the state of
Chihuahua in Mexico. Both folklore and
archeological finds show that the breed originated in Mexico. The most common theory and most likely is that Chihuahuas are descended from the Techichi, a companion dog favored by the Toltec civilization in Mexico.
Historical records indicate that the Techichi hunted in packs. They can only be traced as far back as the ninth century but it is highly likely that this is the Chihuahua's native Mexican ancestor. Evidence of this is that the remains of dogs closely resembling, but slightly larger than the average Chihuahua have been found in such places as the Great Pyramid of Cholula, which dates back to the 2nd century BC and predates the 16th century. There is also evidence to suggest that the Techichi may also predate the Mayans.
The Toltecs were conquered by the Aztecs, who believed that the Techichi held mystical powers. In terms of size, the present day Chihuahua is much smaller than its ancestors, a change thought to be due to the introduction of miniaturized Chinese dogs, such as the Chinese Crested Dog, into South America by the Spanish.
A progenitor of the
dog breed was reputedly found in 1850 in old ruins near Casas Grandes in the Mexican state of
Chihuahua from which the breed gets its name.
The state borders with Texas, Arizona and New Mexico where Chihuahuas first rose to prominence and were further developed in the United States. Since that time, the Chihuahua has remained consistently popular as a breed, particularly in America when the breed was first recognized by the American Kennel Club in 1904. Genetic tests place the Chihuahua with other modern breeds originating in the 1800s.
Chihuahua Description and standards
The Dog 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 six and ten inches. However, some dogs grow as tall as 12 to 15 inches. Both British and American breed standards state that a Chihuahua must not weigh more than six pounds for conformation. However, the British standard also states that a weight of two to four pounds is preferred and that if two dogs are equally good in type, the more diminutive or smaller is preferred. The Fédération Cynologique Internationale (FCI) standard calls for dogs ideally between 1.5 and 3.0 kg (3.3 to 6.6 lbs.), although smaller ones are acceptable in the show ring. Pet-quality Chihuahuas (that is, those bred or purchased as companions rather than show dogs) often range above these weights, even above ten pounds if they have large bone structures or are allowed to become overweight. This does not mean that they are not purebred Chihuahuas; they do not meet the requirements to enter a conformation show. Oversize Chihuahuas are seen in some of the best, and worst, bloodlines. Typically the breed standard for both the long and short coat chihuahua will be identical except for the description of the coat.
Chihuahua breeders often use terms like miniature, teacup, tiny toy, apple headed, or deer headed, to describe puppies. These terms are not recognized by the breed standards and may be misleading.
Chihuahua Coat
The Kennel Club in the United Kingdom and the American Kennel Club in the United States only recognize two varieties of Chihuahua: the long-coat, the smooth-coat, also referred to as short-haired. They are genetically the same breed. The term smooth-coat does not mean that the hair is necessarily smooth, as the hair can range from having a velvet touch to a whiskery feeling. Long-haired Chihuahuas are actually smoother to the touch, having soft, fine guard hairs and a downy undercoat, which gives them their fluffy appearance. Unlike many long-haired breeds, long-haired Chihuahuas require no trimming and minimal grooming. Contrary to popular belief, the long-haired breed also typically sheds less than their short-haired counterparts. It may take up to two or more years before a full long-haired coat develops.
Chihuahua Colors
The American Kennel Club Chihuahua standard lists under color: "Any color-Solid, marked or splashed". This allows for all colors from solid blacks to solid whites, spotted, sabled, or a variety of other colors and patterns. A few examples are Fawn, Red, Cream, Chocolate, Blue, and Black. Merle coloring is a spotted coat. Patterns, all with or without white markings, include:
- Sable
- Irish spotting
- Dalmatian spotting
- Piebald spotting
- Extreme black spotting
- Brindle
- Masks
- Tan points
- Red
- White
- Black
- Merle
- Orange
- Fawn
The merle coat pattern is not traditionally considered part of the breed standard. It is associated with genetic diseases usually associated with inbreeding in other dog breeds. The United Kingdom Kennel Club decided in May 2007 not to register puppies with "Merle coat color in dogs" coloration due to the health risks associated with the gene responsible, and in December of that year formally amended the Breed Standard to say "Any color or mixture of colors but never merle (dapple)". Other countries' Kennel Clubs; including Canada, Australia, New Zealand, and Germany have also disqualified merle. However, in May 2008 the Chihuahua Club of America voted that merles will not be disqualified in the United States and they are fully registrable and able to compete in all American Kennel Club (AKC) events. Opponents of recognizing merle dogs in the breed standards suspect the coloration came about by modern genetic cross-breeding with other dogs, and not via natural genetic drift.
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. The classic Chihuahua color remains fawn. No color or pattern is considered more valuable than the others, although blue is considered rare.
Chihuahua Temperament
Being naturally territorial and protective, Chihuahuas can be easily provoked to attack, and are therefore generally unsuitable for homes with small children, but not in all cases. The AKC describes the breed as, "A graceful, alert, swift-moving little dog with saucy expression, compact, and with terrier-like qualities of temperament." The breed tends to be fiercely loyal to one particular owner, but may be attached to more. They do not always get along with other breeds. These traits generally make them unsuitable for households with small or boisterous children.
Chihuahuas crave attention, affection, exercise and being petted. They can be hyper, but eager to please. They have a reputation as a "yippy" dog, which can be resolved with proper training. Chihuahuas with proper breeding are not "yippy"; the AKC standard calls for "a terrier-like attitude." Long haired chihuahuas tend to have a more mellow temperament.
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 school age 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.
The Chilean Fox Terrier, also known as Ratonero (rat hunter) or Chilean Rat Terrier, is the first Chilean dog breeds existing from 1870 and standarised in the late 1990's for international recognition. Its base is made up of the Fox Terrier of the mid 19th century and Native American dogs.
