However, the British standard also states that a weight of 4–6 lb (1.8–2.7 kg) is preferred. Both British and American breed standards state that a Chihuahua must not weigh more than 5.9 lb (2.7 kg) for conformation. Generally, the height ranges between 6 and 9 in (15 and 23 cm) however, some dogs grow as tall as 30 to 38 cm (12 to 15 in). īreed standards for this dog do not generally specify a height only a weight and a description of their overall proportions. Dogs of the older "deer" type, with a flat-topped head, more widely set eyes, larger ears, and longer, more slender legs, may still be registered, but the deer head is not considered a separate type in competition and a deer-head dog's digression from the breed standard is considered a fault. The stop is well defined, forming a near-90-degree angle where the muzzle meets the skull. Apple-dome Chihuahuas have large, round eyes and large, erect ears, set in a high, dramatically rounded skull. Chihuahuas occur in virtually any color combination, from solid to marked or splashed. Current breed standards defined by registries specify an "apple-head" or "apple-dome" skull conformation. Characteristics Ī shorthair apple-head Chihuahua, showing pronounced stopĬhihuahuas are the smallest breed recognized by some kennel clubs. The American Kennel Club first registered a Chihuahua in 1904, Midget, owned by H. In a letter written in 1520, Hernan Cortés wrote that the Aztecs raised and sold little dogs as food. Ĭolonial records refer to small, nearly hairless dogs at the beginning of the nineteenth century one claims that sixteenth-century conquistadores found them plentiful in the region later known as Chihuahua. A study based on sequencing of ancient dog genomes, published in 2020, suggests that this pre-colonial ancestry survives in two Mexican breeds, to the extent of about 4% in the Chihuahua (and some 3% in the Xoloitzcuintli). It is usually kept as a companion animal or for showing.ĭNA studies suggest that native American dogs entered North America from Siberia roughly 10,000 years ago, and were then isolated for some 9,000 years until the arrival of the first Europeans these pre-contact dogs exhibited a unique genetic signature that is now almost gone. It is named for the Mexican state of Chihuahua and is among the smallest of all dog breeds. The Chihuahua or Spanish: Chihuahueño is a Mexican breed of toy dog.
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