50 free Chihuahua trivia questions with answers — nature quiz, new questions added Aug 2026.
This Chihuahua trivia quiz covers the smallest recognised breed in the world from its Mexican roots to its pop-culture fame. Questions run through the ancient-DNA studies that found a trace of pre-Columbian dog in the breed, Cortés and the Aztecs, the extinct Techichi of the Toltecs, and the first AKC registration in 1904. Then the standard: apple domes versus deer heads, the molera soft spot, heights, FCI and AKC weights, the merle ban, and why 'teacup' breeding is a problem. Health questions take in hypoglycemia and the honey remedy, whelping difficulties and the life-expectancy studies. The pop-culture half covers Gidget the Taco Bell Chihuahua and the $30 million lawsuit, Beverly Hills Chihuahua, Ren Höek of Ren & Stimpy, Paris Hilton's Tinkerbell, Wheely Willy, and record holders Boo Boo, Milly and her 49 clones. Questions run from easy to expert with the difficulty shown on each one, and every answer was checked against a reference page and carries its citation. If you enjoy it, try our Dogs and Pomeranian quizzes next.
30 of 50 questions with answers and explanations. Play the quiz
Q 01The Chihuahua holds what distinction among recognised dog breeds?
It is the smallest in the world
It is a Mexican toy breed kept almost entirely as a companion animal.
Q 02The Chihuahua breed originates in which country?
Mexico
It is named after the largest Mexican state, where 19th-century visitors found the dogs plentiful.
Q 03A 2020 genome study found roughly what share of Chihuahua ancestry comes from pre-colonial American dogs?
About 4%
That small trace still sets it apart from most modern breeds, which are almost entirely European; a 2013 study had guessed as high as 70 per cent.
Q 04Which other Mexican breed shares the Chihuahua's trace of pre-colonial dog ancestry?
Xoloitzcuintli
The hairless Xolo carries about 3 per cent, and the two are the only modern breeds found to retain any at all.
Q 05DNA studies suggest native American dogs entered North America from where, roughly 10,000 years ago?
Siberia
They were then isolated for about 9,000 years until Europeans arrived, and their genetic signature is now nearly extinct.
Q 06In a 1520 letter, which conquistador wrote that the Aztecs raised and sold little dogs as food?
Hernán Cortés
Colonial records also describe small, nearly hairless dogs in the region later called Chihuahua.
Q 07The first Chihuahua registered by the American Kennel Club, in 1904, was named what?
Midget
The dog was owned by H. Raynor of Texas.
Q 08Breed standards call for a Chihuahua skull of what shape?
Apple-shaped
The older 'deer' type has a flatter head and longer legs and is now considered a fault in the show ring.
Q 09What is the 'molera' that many Chihuahuas have on their heads?
A soft spot like a baby's fontanel
It is hard to see but easy to feel with a fingertip.
Q 10The older Chihuahua type with a flat-topped head, wider-set eyes and longer legs is known as what type?
Deer
Such dogs can still be registered, but the deviation from the apple-dome standard counts as a fault.
Q 11A Chihuahua's 'stop', where muzzle meets skull, is described as close to how many degrees?
90
That sharp stop is part of the apple-dome look, together with large round eyes and big erect ears.
Q 12How tall does a typical Chihuahua stand?
6 to 9 inches
Breed standards generally specify only weight and proportions, not height, and some pets reach 12 to 15 inches.
Q 13The FCI standard says a Chihuahua should ideally weigh how much?
1.5 to 2.5 kg
Dogs outside 1 to 3 kg are disqualified from exhibition; the American standard caps show weight at 2.7 kg.
Q 21A 2024 UK study found what life expectancy for the Chihuahua?
11.8 years
That was below the purebred average of 12.7; a 2022 UK study using vet data had put the figure at just 7.91.
Q 22A UK study found Chihuahua bitches suffer dystocia how many times more often than the average dog?
10.4-fold
Tiny mothers and relatively big-headed puppies make whelping difficult.
Q 23The Techichi, an ancestor of the Chihuahua, was bred by which Mesoamerican culture in the 9th century?
The Toltecs
The Aztecs later bred it down into the smaller, lighter dog known today.
Q 14What is the maximum weight for showing a Chihuahua under the American breed standard?
5.9 lb
Pet Chihuahuas often weigh more than that, sometimes over 9.9 lb, without being any less purebred.
Q 15In 2009 the British Chihuahua standard dropped a clause preferring which of two equally good dogs?
The more diminutive one
The change reflected concern about breeding for ever-smaller 'teacup' dogs.
Q 16Why do many breeders try to produce ever-smaller Chihuahuas?
'Teacup' dogs command higher prices
In fact larger breeding females are less likely to suffer obstructed labour, and Chihuahuas do not breed true for size anyway.
Q 17Which coat pattern did the UK Kennel Club remove from the Chihuahua standard in 2007 for health reasons?
Merle
The international standard also bars the mottled pattern because of risks tied to the underlying gene.
Q 18According to the American Kennel Club, Chihuahuas are not recommended for which households?
Families with young children
Like many small dogs they can show above-average aggression, though they tend to be mildly good with other dogs.
Q 19What home remedy do vets recommend for mild hypoglycemia in toy-breed puppies?
Half a teaspoon of honey
Breeders often give it daily to help wean puppies onto dry food; pups taken from their mothers too soon are most at risk.
Q 20In a 2001 radiographic study of six breeds, the Chihuahua had the lowest incidence of what?
Periodontal disease
The breed's real weak points are neurological, including hydrocephalus and atlantoaxial instability, plus luxating kneecaps.
Q 24What unusual trait did the Techichi, the Chihuahua's supposed ancestor, have?
It was mute and could not bark
Its ears were sometimes cropped close to the head, but the tail was left natural.
Q 25How many Techichis are Spanish explorers estimated to have eaten?
Up to 100,000
The Spanish, often short of food, ate them on expeditions, and the breed vanished by the 19th century.
Q 26Mesoamerican peoples believed the Techichi could do what after its owner's death?
Guide the human soul in the afterlife
The dogs were often sacrificed for that purpose, and were thought to guard pyramids if buried beneath them.
Q 27The Mexican state that gave the breed its name is the country's largest by area. Which US states does it border?
New Mexico and Texas
It is slightly larger than the United Kingdom and nicknamed El Estado Grande.
Q 28What was the real name of the Taco Bell Chihuahua, the advertising mascot of 1997 to 2000?
Gidget
The dog was female, even though the character was voiced by a man.
Q 29What was the famous catchphrase of the fast-food advertising Chihuahua of 1997 to 2000?
¡Yo quiero Taco Bell!
'Yeah, drop the Chalupa!' and 'Viva Gorditas!' followed, and the first became a running SportsCenter line.
Q 30Who provided the voice of the Taco Bell Chihuahua?
Carlos Alazraqui
He described the voice as a cross between Peter Lorre and Ren Höek, with a touch of Anthony Quinn.