Pet Trivia
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7correct to beat the crowd
107 free Pet trivia questions with answers — nature quiz, new questions added Oct 2026.
56 free Pet trivia questions with answers. Pets outnumber children four to one in the United States, and this quiz covers the whole menagerie. Dogs and cats get the biggest share: how long ago dogs were tamed, the breed that ended the Labrador's 31-year reign, why cats purr at 25 Hz, the island where the first tame cat was buried, and the record-holders for oldest dog and oldest cat. Then the rest of the pet shop: the one Syrian mother every pet hamster descends from, why guinea pigs need vitamin C, what a business of ferrets is, the budgie with a 1,728-word vocabulary, goldfish memory, bettas that breathe air, and axolotls that regrow limbs. Famous animals get their turn too (Laika, Hachiko, Balto, Toto, Lassie, Nipper, the White House beagles), along with the toy pets that became crazes: Sea-Monkeys, the Pet Rock, Tamagotchi, Furby and Nintendogs. Easy questions suit kids and family game night; harder ones will stretch vets and breeders. Every answer was checked against Wikipedia's articles on each animal, and the source line appears under each question once you have answered.
30 of 107 questions with answers and explanations. Play the quiz
Q 01Under what name is the budgerigar usually sold in American pet shops?
Parakeet
Parakeet is the US pet-trade name for the budgerigar, Melopsittacus undulatus; elsewhere it is usually just called a budgie, and its wild plumage is green and yellow with black barring.
Q 02Which pet bird holds the world record for the largest vocabulary, at 1,728 words?
A budgerigar named Puck
A budgerigar named Puck, kept by Camille Jordan in California, was credited with 1,728 words; the record first appeared in the 1995 Guinness book, a year after the bird died.
Q 03Wild budgerigars are native to which country?
Australia
Their name gave Australians a slang term for tight men's swimwear: budgie smugglers.
Q 04Roughly how long is a goldfish's memory span, despite the famous myth?
At least three months
At least three months is what experiments show: goldfish trained to respond to a sound or colour cue recalled it months later, and they can learn to tell apart shapes, colours and sounds.
Q 05Goldfish were first domesticated in which country?
China
Goldfish were domesticated in China more than a thousand years ago from Prussian carp; during the Song dynasty only royalty could keep the yellow variety, and they reached Japan in 1603.
Q 06In 2005, which European capital banned goldfish being given away as carnival prizes?
Rome
Rome's 2005 animal-welfare bylaw banned giving away goldfish as prizes and outlawed round fishbowls, which deprive fish of oxygen; the same rules required dog owners to walk their pets daily.
Q 07Virtually all pet golden hamsters descend from a single female captured in 1930 in which country?
Syria
Syria is where zoologist Israel Aharoni of the Hebrew University dug up a mother and her litter near Aleppo in 1930; their descendants reached Britain in 1931 and founded the pet population.
Q 08Hamsters carry food back to their burrows using what?
Elongated cheek pouches
Elongated cheek pouches reaching back to the shoulders let a hamster carry food home; the German verb hamstern, meaning to hoard, derives from the animal's name.
Q 09Like humans, guinea pigs cannot make which nutrient themselves and must get it from food?
Vitamin C
Vitamin C must come from food because guinea pigs, like humans, lack a working gene for the enzyme that makes it; rabbits synthesise their own, so the two species should not share feed.
Q 10A happily excited guinea pig performing little hops in the air is said to be doing what?
Popcorning
Popcorning is the name for those sudden joyful hops, likened to kernels popping; rabbits do a similar happy leap called a binky, and ferrets have a 'war dance'.
Q 11Guinea pigs were first domesticated around 5000 BC by people living where?
The Andes
The Andes of Peru and Bolivia were home to the people who domesticated guinea pigs for food; the animals were later used in Inca religious ceremonies and in folk medicine.
Q 12What is the collective noun for a group of ferrets?
A business
A business (sometimes written 'busyness') is the collective noun for ferrets, which are most likely a domesticated form of the European polecat and can interbreed with it.
Q 13The domestic bunny is a domesticated form of which wild species?
The European rabbit
The European rabbit, Oryctolagus cuniculus, is the ancestor of every domestic breed; the indoor 'house rabbit' idea only took off with the House Rabbit Handbook in 1985.
Q 21Pet hermit crabs protect their soft abdomens by living inside what?
Discarded snail shells
Discarded snail shells are the usual home: of the more than 800 hermit crab species, most have an asymmetric abdomen shaped to fit a spiral shell, which they swap for a larger one as they grow.
Q 22The oldest undisputed dog burial, at Bonn-Oberkassel, is roughly how many years old?
14,000
The Bonn-Oberkassel dog, buried with two humans, is about 14,000 years old (some 14,200 years), and genetic studies hint that domestication began even earlier, during the last Ice Age.
Q 23How many permanent teeth does an adult dog have?
42
An adult dog has 42 permanent teeth, twenty on top and twenty-two below, replacing 28 deciduous puppy teeth; despite around 450 breeds, all share the same dental formula.
Q 14What is the fancy rat, the most common pet rat, a domesticated form of?
The brown rat
The brown rat, Rattus norvegicus, is the species behind the fancy rat; the hobby traces to Jack Black, self-styled rat-catcher to Queen Victoria, who sold unusually coloured rats as pets.
Q 15Which pet rodent has the densest fur of any land animal, at about 20,000 hairs per square centimetre?
Chinchilla
The Chinchilla grows around 50 hairs from each follicle, giving fur so dense that fleas cannot live in it; the name comes from the Chincha people of South America.
Q 16Bettas, or Siamese fighting fish, can breathe air at the surface thanks to which organ?
The labyrinth
The labyrinth organ, a folded chamber above the gills, lets bettas gulp air at the surface and survive in oxygen-poor water; the Thai name plakat means 'fighting fish'.
Q 17Which talking pet bird, prized for its mimicry, belongs to the starling family?
Hill myna
The Hill myna, Gracula religiosa, is a starling (family Sturnidae) from South and Southeast Asia, kept for mimicry that rivals that of parrots; the common myna is a starling too.
Q 18Wild axolotls survive only in lakes near which capital city?
Mexico City
Mexico City's Lake Xochimilco canals are the axolotl's only wild home since neighbouring Lake Chalco was drained; fewer than a thousand adults may remain there, while captive populations number in the many thousands.
Q 19The leopard gecko, a common pet lizard, lacks which feature most geckos have?
Adhesive toe pads
Adhesive toe pads are missing on the leopard gecko, which has clawed toes and lives on the ground in the rocky deserts of Pakistan, India and Afghanistan, unlike wall-climbing geckos with sticky feet.
Q 20The harmless corn snake is often killed because it resembles which venomous snake?
Copperhead
The Copperhead shares the corn snake's reddish-brown blotched pattern, so harmless corn snakes are often killed by mistake; the corn snake is a non-venomous constrictor that feeds mainly on rodents.
Q 24In 2023 which breed ended the Labrador Retriever's 31-year run as America's most popular dog?
French Bulldog
The French Bulldog took the top spot in the American Kennel Club rankings released in 2023, ending the Labrador Retriever's 31-year run at number one; the ranking counts the prior year's registrations.
Q 25Which is the smallest recognised dog breed in the world?
Chihuahua
The Chihuahua, typically under six pounds, is the smallest recognised breed; it is named after the Mexican state of Chihuahua, the country's largest by area.
Q 26Despite its name, the Great Dane is a breed from which country?
Germany
Germany is the Great Dane's home: the Deutsche Dogge descends from boar-hunting dogs kept at the courts of German nobles, and the 'Danish' label came from the 18th-century French naturalist Buffon.
Q 27The longest-lived verified dog, Bluey, reached 29 years and was what breed?
Australian Cattle Dog
Bluey was an Australian Cattle Dog who worked sheep and cattle in Victoria from 1910 to 1939; a breed-longevity study concluded he and another cattle dog, Chilla, were exceptions rather than the norm.
Q 28The domestic cat is the only domesticated species of which family?
Felidae
Felidae, the cat family, has the domestic cat as its only domesticated member; a group of cats can be called a clowder, a glaring or a colony.
Q 29The earliest known sign of a tamed cat, from about 7500 BCE, was found beside a human on which island?
Cyprus
Cyprus had no native wildcats, so the cat buried beside a human at Shillourokambos about 9,500 years ago must have been brought by boat from the mainland.
Q 30What is the approximate fundamental frequency of a cat's purr?
25 Hz
A cat's purr has a fundamental frequency of about 25 Hz, with harmonics reaching roughly 150 Hz; lions and tigers roar but cannot purr, while the snow leopard purrs.