Animal Myths and Records: A Fact Check

Animal facts travel fast, and the wrong ones travel fastest. Some of the most repeated "facts" are things people have been saying for centuries, or things a single film made famous. This guide checks six of them against zoos, wildlife agencies and published research, then lists six animal records with the source and date behind each one. If you run trivia nights or play quizzes, this is the quick way to make sure your answer key is right.

Every claim below comes from a page we read on November 14, 2026. Where a source is weaker or only one source supports a detail, we say so.

Six animal myths, checked

Myth 1: Goldfish have a three-second memory

Verdict: false. Researchers have shown that goldfish learn and keep timing and location cues. In a University of Plymouth thesis from 1995, goldfish and grey mullet pressed a lever for food that was only delivered during one set hour each day. According to the abstract, the fish pressed mostly during the rewarded hour, and the pattern continued for several days even when no food was given.

Live Science quotes Culum Brown, a fish cognition researcher at Macquarie University, saying there are thousands of studies showing that fish have good memories. The same article describes goldfish that learned to push a red paddle for food and kept preferring it afterward. It also says goldfish remembered tasks such as escaping a net weeks or months later, but it does not name the studies behind that last point, so treat the exact timespan as reported, not proven here.

Evidence status: two sources agree that the three-second claim is wrong. We did not find where the myth started.

Myth 2: Ostriches bury their heads in the sand

Verdict: false. The San Francisco Zoo says the idea likely comes from young ostriches lying down and stretching their necks along the ground to hide. Live Science adds two more explanations. Ostriches dig shallow holes in sand or dirt for their eggs and turn the eggs several times a day, and they spend a lot of time with their heads low to feed, which can look like burying from a distance.

Live Science also traces the story to the Roman writer Pliny the Elder, who described ostriches hiding their heads in a bush. That attribution comes through a translation quoted by that article, so we rely on it only as the likely origin. If a threat is close, ostriches usually run. Both sources describe them as the largest living bird, and the San Francisco Zoo says adults can run up to 40 mph.

Myth 3: Bats are blind

Verdict: false. The U.S. Geological Survey states plainly that bats are not blind. Their eyes are small but very sensitive, which lets them see in dim light, even if their vision is not sharp or colorful like ours.

Live Science adds that vision varies by species. Many fruit bats do not echolocate at all and rely on good eyesight, and a 2009 PLOS ONE study it cites found that two nectar-feeding species can see in daylight and may detect ultraviolet light. A 2015 Current Biology study of the Egyptian fruit bat found it keeps echolocating in bright light and speeds up its clicks when landing, which suggests it combines sight and sound. We read these studies through the Live Science summary, not the papers themselves.

Myth 4: Lemmings jump off cliffs on purpose

Verdict: false. The Alaska Department of Fish and Game quotes its biologist Thomas McDonough calling the idea a complete urban legend. The agency blames the 1958 Disney film White Wilderness, which showed a mass plunge into the sea. It reports that a 1983 investigation by a Canadian Broadcasting Corporation producer found the scene was staged: the lemmings were pushed off a cliff, the "sea" was a river, and the film was shot in landlocked Alberta.

What lemmings really do is disperse. Britannica says their numbers boom every three or four years, and when crowding gets intense they move on, and some drown while crossing water. A University of Alaska Fairbanks zoologist quoted by the Alaska agency says that what people see is mass dispersal, not suicide. The 1983 investigation detail comes from the Alaska agency only; both sources agree the film's cliff scene was staged.

Myth 5: Camels store water in their humps

Verdict: false. Britannica and the Cleveland Zoological Society both say the hump holds fat. The body draws on it when food is scarce, and the hump can droop after a long stretch without eating. The Cleveland page says a hump can hold up to 80 pounds of fat; we found that figure on one page only.

Camels do cope well with thirst, but through other means. Both sources say a camel can drink about 30 gallons at once. Britannica adds that their oval blood cells are elastic, which helps them handle that rush of water and keeps blood flowing when water is scarce. It also says camels can go nearly a week without drinking and that fat concentrated in the hump limits insulation over the rest of the body, so heat escapes more easily at night.

Myth 6: Parent birds reject babies that humans have touched

Verdict: false. Audubon quotes Susan Elbin of New York City Audubon saying parents will not abandon their chick, and notes that birds' sense of smell is not well developed. Cornell Lab's All About Birds agrees: most birds have a poor sense of smell, and they recognize their young mainly by sight and sound.

The better question is whether the bird needs help at all. Audubon says fledglings, which have feathers and hop around, are normally out of the nest while their parents watch nearby, and healthy ones should be left alone. Nestlings that have fallen are a different case. Both sources say you can return a fallen nestling to its nest or move a fledgling into a nearby shrub or tree out of danger. If a bird looks injured or the parents do not return within an hour, Audubon advises calling a wildlife rehabilitation center. Do not feed the bird.

Six animal records, with sources and dates

Records are slippery. Guinness World Records notes on its pages that records change daily and are not instantly published online, and several entries below rest on old or contested measurements. We list only records from pages we read, and we left out any "oldest living" or "tallest living" claims that could have changed since publication.

Record	Holder and figure	Date of measurement or study	Source (read Nov 14, 2026)
Fastest land animal, short distance	Cheetah, 64.3 mph (103.5 km/h) averaged over three runs on a 201.2 m course	1965	Guinness World Records
Fastest bird in a dive	Peregrine falcon, about 320 km/h (200 mph) estimated in a hunting stoop; one experimental dive reported 389 km/h (242 mph)	Experimental dives filmed in 1999	Guinness World Records
Largest animal	Blue whale; heaviest on record 190 tonnes, caught 20 March 1947	1947 (Guinness lists 2014 as the record date)	Guinness World Records
Tallest mammal	Giraffe; typical adult male 4.6 to 5.5 m (15 to 18 ft)	Historic holder George arrived at Chester Zoo 1960, died 1969	Guinness World Records
Largest living bird	Ostrich; males up to 2.74 m (9 ft) tall and 156.4 kg (345 lb)	No date given on the page	Guinness World Records
Longest-lived vertebrate known	Greenland shark; oldest sampled female estimated at about 392 years, plus or minus 120	Science study, August 2016	Science News; NOVA/PBS

Notes on the records

Cheetah: the 64.3 mph figure is the official short-distance entry, but Guinness also says cheetahs reach about 100 km/h (62 mph) on level ground, over roughly 500 m. That figure is the one used in most trivia answers.
Peregrine falcon: Guinness says some ornithologists questioned the 389 km/h dives because they began from a higher altitude than peregrines normally use. The safer answer for a quiz is "over 300 km/h".
Blue whale: Guinness says the extinct whale Perucetus has been estimated at 85 to 340 tonnes, but more evidence is needed before it could take the record. Living and extinct animals both qualify.
Giraffe: the Guinness page gives George's height as 5.8 m in its text but 5.5 m in its summary field. Because the page contradicts itself, we use the typical range instead of a single height.
Greenland shark: the age comes from radiocarbon dating of eye-lens proteins in 28 sharks. NOVA also says the upper estimate could reach about 500 years and that sharks are mostly cartilage, which makes exact aging hard. Treat 392 as an estimate, not a birth certificate. The Science paper itself would not load for us, so we rely on two reports of it, and they differ by one day on the publication date (August 11 and 12, 2016), so we give the month only.

How to avoid repeating a myth

Our rule of thumb for checking any animal fact before you put it in a quiz:

Look for a zoo, wildlife agency, museum or university page, not only a listicle.
Check for a date and a method. A record with no date, or a measurement from a staged or one-off event, deserves a softer wording like "about" or "reported".
Avoid "currently" and "oldest living" wording unless you can re-check it before every quiz.
Prefer questions where the correct answer holds up even if a number is revised.

Quick answers

Is the goldfish myth completely settled? The three-second claim is rejected by the sources we read. Exact memory spans vary by task, so avoid giving one number.
Should you touch a baby bird? Touching will not make parents reject it, per Audubon and Cornell. Whether you should move it depends on whether it is a fallen nestling or a fledgling.
Why do these myths last? Many are short, vivid and easy to repeat, and some, like the lemming story, were reinforced by a popular film.

Test yourself

Ready to try what you learned? Head to our animal trivia quiz, browse nature trivia, or test your instincts with trick questions. For more factual practice, try science trivia, or play a relaxed round of fun trivia.

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Sources

By the Quizcrest editorial team · Last checked: November 14, 2026. Found a mistake? Tell us.