[[quoteright:320:[[WesternAnimation/{{Animaniacs}} http://static.tvtropes.org/pmwiki/pub/images/useless_fact_9.jpg]]]]
[[caption-width-right:320:[[RunningGag "And now, another...useless fact!"]]]]

->'''Charlie Brown''': Now, Lucy, I know that's wrong. Snow doesn't come up, it comes down.\\
'''Lucy''': After it comes up the wind blows it around so it looks like it's coming down, but, actually, it comes up out of the ground, like grass. It comes up, Charlie Brown, snow comes up.\\
'''Charlie Brown''': Oh, good grief--\\
'''Linus''': Lucy, why is Charlie Brown banging his head against a tree?\\
'''Lucy''': To loosen the bark so the tree will grow faster. Come along, Linus.
-->-- ''[[ComicStrip/{{Peanuts}} You're a Good Man, Charlie Brown]]'', "Little Known Facts"

It is often said that truth is stranger than fiction[[note]][[Literature/TheAreasOfMyExpertise But it is never as strange as lies]][[/note]]. Little Known Facts are much too strange to be true. These improbable legends may be explained by the KnowNothingKnowItAll, TheDitz or the {{Cloudcuckoolander}}, or just by someone trying to take advantage of the gullibility of some person, usually a child. If any questions are asked, the answers will only compound the absurdity.

For the record, snow comes from ''up'', not down. That's why you never trust a quack like Lucy Van Pelt.

Compare TheBlindLeadingTheBlind, DontBeRidiculous. If said facts are true, it's not this trope. It's probably RealityIsUnrealistic, or one of its subtropes.



[[folder:{{Anime}} and {{Manga}}]]
* Takashi Yamazaki (or [[DubNameChange Zachary]], if you prefer) in ''Manga/CardcaptorSakura'' was notorious for this.
* ''Manga/KatteNiKaizo'': Mr. Fashion comes up with bizarre explanations for cloth functions. For example, camoflage was not invented to blend in the terrain but to hide embarrassing stains on your underwear.

[[folder:Comic Books]]
* ''Comicbook/{{Transmetropolitan}}'' takes place far in the future. [[FutureImperfect A lot of knowledge has either been lost or is no longer known commonly.]] After procuring some of Hitler's urine to do drugs to, one person explains to a friend the history of the man.
-->"Who was Hitler?"\\
"Rock star. He was in Led Zeppelin. [[BestialityIsDepraved Fucked goats]] and wrote the old national anthem. Blew up Auckland in the Blitz."\\
"Wasn't all bad, then, was he?"\\
"History's a wonderful thing, see? We learn from it."

* The characters told each other these in ''Film/GregorysGirl'', and Andy uses it to pick up girls.
--> Twenty thousand tons of cornflakes pass under this bridge every day. It's a well known fact.
* Subverted in ''Film/TheCatInTheHat'', after the Cat falls off the ceiling and lands on his back:
-->'''Cat:''' Little known fact: cats ''always'' land on their tushie.
-->'''Conrad:''' I thought they always landed on their feet.
-->'''Cat:''' Oh great, ''now'' you tell me. ''[chuckles and swiftly rights himself]''
* In ''Film/ShaunOfTheDead'', according to the [[TheGhost unseen Big Al]], dogs can't look up. Obviously you don't believe this because it seems absurd for dogs to have never evolved that capability and Big Al is a fan of [[TheStoner copious amounts of marijuana]] yet it's near impossible to form a sensible argument against. The joke actually came from DVDCommentary for ''Series/{{Spaced}}''. Nick Frost genuinely did believe that dogs can't look up.
* Otto apparently did this a lot in ''Film/AFishCalledWanda''.
-->'''Wanda Gershwitz''': Let me correct you on a couple of things, OK? Aristotle was not Belgian. The central message of Buddhism is not "every man for himself". The London Underground is not a political movement. Those are mistakes. I looked 'em up.

* The comedy book ''Great Lies To Tell Small Kids'' consists of these:
-->"Wine makes Mummy clever."\\
"Slugs are snails that couldn't afford the rent."
* Luna in ''Literature/HarryPotter'' was full of these, mostly focusing on bizarre animals.
* Creator/DaveBarry, in his "Mister Language Person" columns, gives out ridiculously bad advice about grammar, spelling and writing style, throwing in some choice Little Known Facts on other subjects:
-->'''Q. What the heck are "ramparts," anyway?'''\\
A. They are parts of a ram, and they were considered a great delicacy in those days. People used to [[http://en.wikipedia.org/wiki/The_Star-Spangled_Banner watch o'er them]].
* ''Literature/TheAreasOfMyExpertise'' is full of this, especially in the "Were You Aware Of It?" segments. Among other things, there's a fifty-first state inhabited by thunderbirds, and hobos tried to conquer the United States during the Great Depression.
** Continued in ''Literature/MoreInformationThanYouRequire''. UsefulNotes/ThomasJefferson got the idea for the Declaration of American Independence from mole-men, air conditioners were invented to make Brooklyn more violent, and Music/JonathanCoulton was created in a lab to be the ultimate destroyer of cats. There's a reason the series is called ''Literature/CompleteWorldKnowledge''.
* The [[http://www.haggis-on-whey.com/ Haggis-On-Whey]] books are lavishly illustrated educational books of the Dorling-Kindersley mold that explain how, for instance, giraffes are from Neptune and came to Earth via conveyor belt.
* Scott Adams of ''ComicStrip/{{Dilbert}}'', in his book ''The Joy of Work'', lists several to try out on TooDumbToLive co-workers, such as "French is exactly the same as Spanish, except with more words for cheeses."
* TheRemarkableMillardFillmore claims that Fillmore saved Andrew Jackson from assassination, wrestled with the emperor of Japan, and invented the t-shirt. If you check Amazon you'll see it has a three-star rating, due to complaints that it is "deceptively advertised" as an accurate biography. The cover illustration of Millard Fillmore riding a unicorn is apparently not enough of a clue.
* The phrase "Little Known Fact" is used in a ''computer book'' of all things, where the author states that 0.6 times 3 is 1.799999999999998. [[JustifiedTrope It's justified]] in that he's pointing out how storing non-whole numbers in a space- and processing-efficient way makes operations on them inexact, causing math glitches (which in most cases can be rounded away).
* The title character of the ''Literature/HankTheCowdog'' series regularly tries to impress his sidekick, Drover, with exaggerated explanations of natural phenomena. Drover, not being the smartest dog in the world, believes him.
* ''How I Edited An Agricultural Paper Once'' by Creator/MarkTwain is full of this. Some of his claims even were technically true--such as "the pumpkin as a shade tree is a failure" or "clams will lie quiet if music be played to them".
* The misconception that UsefulNotes/JohnFKennedy's famous proclamation "Ich bin ein Berliner" translated as "I am a jelly donut" may have been started in Creator/LenDeighton's 1983 spy novel ''[[Literature/BernardSamsonSeries Berlin Game]]'', in which the main character makes that claim, and a review of the book in ''The New York Times'' referred to it as a reference to a real fact rather than something the character made up. That is -- technically spoken -- not a misconception. In most parts of Germany, a "Berliner" is indeed the name for a lump of sweet yeast dough filled with jelly and fried in oil. See for yourself: [[http://en.wikipedia.org/wiki/Berliner_(doughnut) Berliner on Wikipedia]]. Of course, apart from a joke here or there, people understood what he really meant.
* In ''Literature/CharlieAndTheChocolateFactory'', Mike asks Willy Wonka if other things could be transported via the Television Chocolate setup, such as breakfast cereal. Mr. Wonka is aghast at the mention of cereal: "Do you know what breakfast cereal is made of? It's made of all those little curly wooden shavings you find in pencil sharpeners!" (Mr. Wonka being the eccentric {{Trickster}} he is, he may or may not be taking advantage of a child's gullibility here.)

[[folder:Live Action TV]]
* [[KnowNothingKnowItAll Cliff Clavin]] from ''Series/{{Cheers}}'' is the undisputed king of these. It's a [[SelfDemonstratingArticle little known fact that "it's a little known fact" was practically his catchphrase.]] Hell, this page could have been called "Cliff Clavenisms."
* Felix Unger on ''Theatre/TheOddCouple'' was doing this all the time: "The opposite of brown is purple", "Millard Fillmore knew less about opera than any other President- except of course for Rutherford B. Hayes".
* RE the 'taking advantage of gullibility' thing: on ''Series/{{Seinfeld}}'', Jerry told Elaine that the original title for Tolstoy's ''Literature/WarAndPeace'' was "War: What Is It Good For?".
** There's another episode where a guy snags a date with Elaine by making a bet with her over whether an obvious example of this trope is true or false, with the terms being that the loser buys the winner dinner. Jerry realizes (and explains to her) that the guy did this ''deliberately'' as a clever way to ask her out without risking rejection. They discover later that he uses this trick constantly (even to covertly try to and hit on women who are dating somebody else)
* ''Series/LookAroundYou'' was entirely made of this.
* Doug from the redecorating reality show ''Trading Spaces'' series did this at least once when they started doing "family" versions of the series involving families with young children. When dealing with fabrics, he asked, with a completely straight face, if the kids had ever seen "a wild nylon".
* ''Series/TheKidsInTheHall'' had the [[http://www.kithfan.org/work/transcripts/two/facts.html "It's A Fact" Girl]], who would not only relate but demonstrate her Little Known Facts.
* ''Series/SaturdayNightLive''
** Deep Thoughts with Creator/JackHandey bounced back and forth between this and simple inane musings.
-->"If you met two guys on the street named Flippy and Hambone, which one would you think would like dolphins more? You'd guess Flippy, right? Well, you're wrong. It's Hambone."
** A GameShow sketch called "Common Knowledge" where the "correct" answers (that is, the answers the judges were looking for) were this. In the sketch, giving the actual correct answer counted as getting the question ''wrong'' (since "correct" was defined as "whatever [[TakeThat a majority of high school seniors thought was the right answer]]"). This allowed a teenaged stoner to beat former UN Ambassador Jean Kirkpatrick at the game.
* Creator/DavidLetterman's "Fun Facts" sketches, which were made into a book. Examples include "''Series/MatchGame'' host Gene Rayburn's tombstone reads, 'Loving father, husband and ____.'," "Prior to 1936, elevators only went up, not down," and "For $25, New York will name a pothole after you."
* ''Series/{{QI}}'' exists to debunk these. This didn't stop RichHall suggesting that the show should just use Little Known Facts, since people would believe them.
* Mason from ''Series/DeadLikeMe'' is a total sucker for these. Did you know that when you put money in a parking meter, it goes down to pipes under the sidewalk? It's just as well, because when he's told the money stays in the meters, he goes around breaking them open with a [[BatterUp baseball bat]]. He actually [[DeadToBeginWith died]] of his gullibility.
* The "Rock Facts" that the hosts of ''Series/TheSiflAndOllyShow'' presented; examples [[http://www.sockheads.org/index.php/Rock_Facts here]]. (The actual on-screen text would debunk these, however.)
** There's also Deuce Loosely, a one-off character who annoys Sifl And Olly with little known facts about [[PandaingToTheAudience pandas]] ("Like the shark, the panda has millions of teeth which it uses like a hacksaw to cut through bone, candy, and fences. The Chinese believe that if you find a discarded panda tooth, you have the power to summon Franchise/{{Godzilla}}.")
*** [[http://www.youtube.com/watch?v=-XEwooQ6ivg And panda tears were used to grease the roofs of castles to prevent samurai from breaking in!]]
* During the final round of ''Series/TalkinBoutYourGeneration'', the host [[Creator/ShaunMicallef Shaun]] prepares some "interesting" "facts" to share with the teams, claiming to source all of his information from [[CriticalResearchFailure Wikipedia]].
-->'''Shaun''': "Cheaper [paint]brush hair is sometimes called "camel hair", although it doesn't come from camels. Apparently, it comes from tourists in India who are shaved against their will."
* ''Series/TopGear'': Some say this trope comes up during [[MemeticBadass The Stig]]'s introductions.
* In ''Series/{{Community}}'' episode "[[Recap/CommunityS1E07IntroductionToStatistics Introduction to Statistics]]", Jeff's first pick up line aimed at Slater consists of an intentionally erroneous one of these.
* ''Series/TheDailyShow'' and ''Series/TheColbertReport'' have used these on Website/{{Twitter}} to make fun of dubious statements by political figures. After Senator Jon Kyl said his claim that abortions constitutes well over 90% of what Planned Parenthood does was "[[MemeticMutation not intended to be a factual statement]]," Creator/StephenColbert created the hashtag #notintendedtobeafactualstatement for this trope. After UsefulNotes/SarahPalin got Paul Revere's story [[CriticalResearchFailure wrong]], ''The Daily Show'' created the hashtag #accordingtopalin for intentionally erroneous historical facts. After Herman Cain said "I donít have facts to back this up, [[InsaneTrollLogic but I happen to believe]] that these demonstrations are planned and orchestrated to distract from the failed policies of the Obama administration." ''The Daily Show'' created the hashtag #idonthavefactstobackthisup for this trope.
* In one episode of ''Series/BigWolfOnCampus'', Merton is assigned to help DumbMuscle Tim and Travis with a presentation on evolution. Realizing that there's no way to get them to actually understand the concept, he just feeds them a lot of lies (for example, that humanity evolved from meatloaf) and planned on giving most of the presentation himself. Unfortunately, he was off fighting the MonsterOfTheWeek at the time of the presentation, so the two gave a talk on all the stuff he'd been telling them.
* [[Series/AllInTheFamily Archie Bunker]] was known to mix this trope with SeriousBusiness, offering up some absurd idea about how to do a simple task, such as eating dinner or putting on a pair of pants, then giving bizarre, pseudo-factual explanations as to why his way was best (for example, when you're eating dinner, you have to combine the various items on your plate and take small bites of each, rather than eating one thing at a time--if you do ''that,'' all of the pea nutrients might go to your hands, for example). Normally, this was harmless...it was when he started mixing this trope with ideas about social issues that things got a little more serious, though no less funny. For instance, in the famous episode with Sammy Davis Jr., Archie remarks that God obviously doesn't want integrated society, as "He put you over in Africa, and He put the rest of us in all the white countries"; Sammy [[DeadpanSnarker quickly replies]] "Well, you must have told him where we were, 'cause somebody came and got us."

* ''GamesMagazine'' used to run articles of LittleKnownFacts, with items like "David Letterman is a member of a club that only admits people named Michael" and "because cat litter is made of clay, workers in cat litter factories are legally considered miners and must wear mining helmets at work." The reader was expected to determine which facts were true and which were not. Ironically, many readers simply read the articles uncritically, or learned the "facts" but forgot they had come from a puzzle.

* ''Music/LesLuthiers'' on La Gallina Que Dijo Eureka Routine: "To the children we must always tell the truth; of course, in terms they can't understand."
* The liner notes to [[Music/TheyMightBeGiants John Linnell]]'s ''State Songs'' include ostensible trivia about each of the sixteen states the album's songs are named for. Usually these will be actual facts about a state juxtaposed with bizarre, obviously fake ones, leading to something of a BreadEggsMilkSquick effect. Take the entry on Michigan:
-->The Official State Stone of the Wolverine State is the Petosky Stone. Michigan has also adopted a State Soil: the Kalkaska Soil series. The State Bird is a terrifying airborne car with gigantic metal talons. The State Flower is the Apple Blossom.
** There is also one intended-to-be-true fact that isn't quite right. Pennsylvania's state bird is the ruffed grouse, not the ruffled grouse.
* "Or So I Have Read" by Music/TheyMightBeGiants involves the narrator reading from a book of of increasingly bizarre nonsense facts, claiming that barber poles are captured in the wild (and you can determine their age if you count the stripes), clouds are white because they're made of bone (which the narrator believes would explain why there are skeletons living in space), and that mimes are the hybrid offspring of clowns and ordinary humans.
-->Animals can smell your dreams, or so I have read\\
Which explains the constant sniffing under your bed\\
Or so I have read\\
It says it right here\\
And did you know that mixing paint with milk will make it clear?
* "Worms Make Dirt!" by ''Music/TheAquabats'' makes a number of tongue-in-cheek claims, like that geothermal radiation is caused by a chipmunk baking desserts at the center of the Earth, or that worms come out of the ground when it rains because eating dirt all day makes them thirsty.

[[folder:Newspaper Comics]]
* Calvin's dad was notorious for these in ''ComicStrip/CalvinAndHobbes''. Thanks to him, Calvin learns about the world only turning color in the 1930s (and pretty grainy color for a while, too), the sun setting every night in Flagstaff, Arizona ([[DepthDeception Hold up a quarter, the sun's about the same size]]), wind being caused by [[EpilepticTrees trees sneezing]] (not really, but the real answer is much more complicated), and babies being bought at Sears, as a kit (Calvin was a Blue Light Special from K-Mart, however. "Much cheaper, and almost as good"). Calvin's mom is usually around to correct things, though.
--> '''Calvin''': How do they know the load limit on bridges, Dad?\\
'''Dad''': They drive bigger and bigger trucks over the bridge until it breaks. Then they weigh the last truck and rebuild the bridge.\\
'''Calvin''': Oh, I should've guessed.\\
'''Mum''': Dear, if you don't know the answer, just tell him!
** What makes this even funnier is that Calvin's dad works as a patent lawyer, a job which requires a good deal of knowledge of technology and science, and as such could explain these things to Calvin if he really wanted to. Not to mention the fact that Calvin is [[LittleProfessorDialog likely to understand it]]. He won't tell you how a carburetor works, though. It's a secret.
** Note that there's one instance in an early comic where Calvin's dad states plainly he doesn't know the answer to some of Calvin's questions and they should probably try to look it up. Calvin's response: "I take it there's no qualifying exam to be a dad."
** Infrequently, he would attempt to educate Calvin with little success. When Calvin was playing in the sprinkler, he praised him for raising his heart rate, which took all the fun out of it. When he was listening to a record player, he explained how parts on the outside had a faster speed even though it had the same RPM; in the last panel Calvin is sitting up in bed [[MindScrew trying desperately to wrap his mind around the concept]].
* ''ComicStrip/{{Peanuts}}''
** Early strips (1955-1965, say) use Lucy telling these to Linus as a running joke, although those strips are rarely reprinted these days. An odd example given that Lucy actually believed these "facts" herself and it was Charlie Brown who had to try and protest them. An example is that leaves are actually flying south for the winter when they fall (because south is down on a map).
*** Before she started telling Linus these things, she would tell them to Charlie Brown and completely ignore his protestations otherwise, including the "snow comes up" idea.
** At one point, Lucy's extended misunderstanding of trees, up to and including claiming telegraph poles were a special type of tree developed for the phone companies, gave Charlie Brown a sore stomach. When she got up to leaves jumping off trees in autumn to escape the squirrels, even Linus could endure no more and developed a stomachache of his own.
** Linus believes in the Great Pumpkin even though he made it up himself.
* Bucky from ''ComicStrip/GetFuzzy'', usually to Satchel.

* Radio/BobAndRay characters such as "Mr. Science" often came up with these.
* Likewise, [[http://drscience.com/wordpress/ "Dr. Science"]] from DucksBreathMysteryTheatre and Creator/{{NPR}}, although he tends to be more interactive, with listeners writing in with questions designed to prompt a spew of twisted factoids.
* ''Radio/TheUnbelievableTruth'' is ''about'' this trope. The object of the game is to hide five ''actual'' facts within a list of those that are, of course, Little Known.

[[folder:Stand-Up Comedy]]
* Creator/GeorgeCarlin regularly sprinkled supposed "truefax" lists in his comedy routines. One of the more memorable ones is the "It's No Bullshit" segment on ''Carlin On Campus'', parodying ''Franchise/RipleysBelieveItOrNot''.
* One stand-up lamented how some accents lend themselves to this; someone with a thick British accent could convince you that cocoa comes from a coconut just be being insistent enough, and conversely nuclear technicians with certain Southern accents...

* The trope name is a number from the musical ''[[ComicStrip/{{Peanuts}} You're a Good Man, Charlie Brown]]'', in which Lucy explains to Linus that fir trees give fur, bugs make the grass grow, and snow comes up out of the ground. (See NewspaperComics above for the inspiration for this number.)
* ''Theatre/TheCompleteWorksOfWilliamShakespeareAbridged'' starts out by mixing up the biography of Shakespeare's life with that of UsefulNotes/AdolfHitler. They also mix up Eva Braun and Evita Peron, for added giggles.
-->"Shakespeare invaded Poland on September 1, 1939, thus precipitating UsefulNotes/WorldWarII... I never knew that before."

[[folder:Video Games]]
* The Fact Sphere in ''VideoGame/{{Portal 2}}'' exists solely to spit these out, including such gems as:
-->"Creator/WilliamShakespeare did not exist. His plays were masterminded in 1589 by Francis Bacon, who used a ouija board to enslave play-writing ghosts."\\
"Edmund Hillary, the first person to climb Mount Everest, did so accidentally while chasing a bird."\\
"Pants were invented by sailors of the sixteenth century to avoid Poseidonís wrath. It was believed that the sight of naked sailors angered the sea god."\\
"At some point in their lives, one in six children will be abducted by the Dutch."\\
"[[MetaphoricallyTrue Humans can survive underwater,]] [[CaptainObvious but not for very long]]."
** He does get some facts right, though. For example, his "fact" regarding the melting point of tungsten ''is'' accurate to within a dozen degrees or so.
*** Then there are "facts" made up solely to insult the other personality spheres ("The Adventure Sphere is a blowhard and a coward") and even Chell herself ("[[YouAreFat You could stand to lose a few pounds]]", "This is a bad plan, you will fail"), and other "facts" that are merely [[SmallNameBigEgo self-praise]] ("The Fact Sphere is a good person, whose insights are relevant") or nonsense ("Error, error, error, fact not found").
** The advertisements for Portal 2 also had several of those:
-->''"Fact: Four out of five people are crushed to death by giant diamonds every day."''
* The "Red Freak Facts" on some screens in the Flash horror platformer ''VideoGame/TheBrightInTheScreen''.
* The "Uncle Sheogorath's helpful hints and tips" mod for ''{{VideoGame/Skyrim}}'' replaces the regular (accurate) information on the loading screens with observations and advice from everyone's favorite Daedric Prince of Madness, Sheogorath. Gems include that Skyrim's bears are harmless honey-eaters who make great pets for your children, that the Stormcloak Rebellion is all about mushrooms, that Khajit tails are hollow and used for smuggling (or, in an emergency, as a tent), that Draugr make for great and inexpensive dates, and that he used to be an adventurer like you. He also calls Clavicus Vile "oddly blurry", lampshades the unhealthy practice of eating disgusting alchemy ingredients, and insists that giants' toes are made of gold. (Which is metaphorically true, as they can be used to make a particularly potent - and thus valuable - potion.)
* Chemistry-themed puzzle game ''Sokobond'' gives you a small fact whenever you complete a level, usually pertaining to the molecule you've created. They're generally accurate... until you reach the bonus levels, which includes such gems as:
-->''"The biggest atom recorded by science was twelve meters long and shaped like a cucumber."\\
"Sunlight kills oxygen, that's why no one can live in the Sahara."\\
"A male duck's atoms have a different 'spin' than a female duck's."''

* Jim in ''Webcomic/DarthsAndDroids'' has a knack for quickly making up (hilariously wrong) definitions for odd words the GM uses. The most enduring is saying that "Jedi" is a kind of cheese, which may be the result of mishearing it as "cheddar;" he still calls the Jedi "Cheddar monks."
** One of the author comments on a later strip explains that a recent joke was not, in fact, in whatever cipher or language that everyone seemed to think it was in; but, Jedi was in fact "Ceda" in said language/cipher. They suggest that perhaps Jim was onto something there.
* Sir Miur in ''Webcomic/{{Harkovast}}'' is either using these, or just a {{Cloudcuckoolander}}.
* This was a RunningGag in ''Webcomic/TheParkingLotIsFull'', and even ended the comic itself:
--> [[RetGone There's never been a comic called "The Parking Lot Is Full".]]
* [[http://xkcd.com/826/ This]] ''Webcomic/{{xkcd}}'' guest comic features "the Smithsonian Museum of Dad-Trolling, an entire building dedicated to deceiving children for amusement", with exhibits such as the Hall of Misunderstood Science ("DNA only has four letters because the alphabet was smaller back then") and the Conservatory of Poorly-Remembered History ("Ghengis Khan: Victory Through Dragons").

[[folder:Web Original]]
* Via ''WebVideo/LoadingReadyRun'':
--> '''Paul''': [[http://loadingreadyrun.com/videos/view/31/Out-of-Sync "Alright look. It's not that bad if you really think about it"]]
--> '''Graham''': "Really."
--> '''Paul''': "It's a well-known fact that thousands of people have to live with this affliction all over the world, and they manage okay."
--> '''Graham''': "That's not a well-known fact."
--> '''Paul''': "Well I know it. And I know it well. So it's a well-known fact."
* Numerous lists of these "facts" circulate the web. They almost invariably claim "A duck's quack [[http://www.snopes.com/critters/wild/duckecho.asp doesn't echo,]] and nobody knows why."
** Not only does ''{{WebSite/Snopes}}'' address it, ''Series/MythBusters'' tested that one too, and they found the echo. So it's on national TV as well.
* ''Website/{{Snopes}}'' has a section of blatantly false "[[http://www.snopes.com/lost/lost.asp Lost Legends]]" (full title: '''[[FunWithAcronyms T]]'''[[FunWithAcronyms he]] '''[[FunWithAcronyms R]]'''[[FunWithAcronyms epository]] '''[[FunWithAcronyms O]]'''[[FunWithAcronyms f]] '''[[FunWithAcronyms L]]'''[[FunWithAcronyms ost]] '''[[FunWithAcronyms L]]'''[[FunWithAcronyms egends]]); its [[http://www.snopes.com/lost/false.asp purpose]] is to demonstrate the danger of relying on a single source without applying common sense. (Ironically, one of the legends was taken for fact by the TV show ''Mostly True Stories: Urban Legends Revealed''.)
* [[http://fakescience.tumblr.com/ fakescience]] Website/{{Tumblr}} blog, with such gems as the [[http://fakescience.tumblr.com/post/16922595159/understand-groundhog-day Groundhog Day Chart]].
* [[http://did-yuo-kno.tumblr.com/ Did Yuo Kno?]] Made even funnier by all the [[PoesLaw people who take it seriously.]]
* [[http://facts-i-just-made-up.tumblr.com Facts I Just Made Up]] isn't trying to fool anyone, which resulted in embarrassment when [[http://facts-i-just-made-up.tumblr.com/post/49721797788/sorry-everyone-ive-been-informed-that-this-one one of his 'facts' was proven true]].
* [[http://parallel-universe-facts.tumblr.com Parallel Universe Facts]] is an aversion, but looks as if it is played straight from our perspective.
* [=JigglyJacob=]'s "Wacky Facts" videos for games such as [[http://youtu.be/MFvwxtTV3kE?list=PL7geb652VoblGc9gqjP1ZyfvXocms3641 Metal Gear Solid]] and [[http://youtu.be/QTy-Fwy_i-g Five Nights at Freddy's]].
* WebVideo/{{Jacksfilms}}' parodies of Mathew Santoro's 50 facts series definitely qualify.
** There was also a YIAY episode where he asked his fans for some.
* Geoff Ramsay of ''WebOriginal/AchievementHunter'' routinely pulls this on his daughter, Millie, such as [[https://youtu.be/4SfmMkL9FfQ claiming that "flip-flops" are actually "flop-flips"]], or that [[https://youtu.be/-EnwTmCo4ro bears eat poop and live in toilets]] to [[ItMakesSenseInContext help potty-train her]].
-->'''Geoff''': We're at the point now that if she asks a question and I tell her something, she looks over at [her mother]. Looks for a head nod.

[[folder:Western Animation]]
* ''WesternAnimation/{{Animaniacs}}'' with its ''Useless Facts'' segment.
* The first season of ''PlanetSketch'' had a series of sketches that revolved around a father telling these to his son, and usually ended with the son fleeing the room in panic.
* ''WesternAnimation/SouthPark'':
** Little Known Facts pretty much made up the curriculum of Mr Garrison's class.
** Cartman is fond of spewing these about ginger kids, Jews, and everyone else.
* This was the whole point of the "Ask Dr. Stupid" segments on ''WesternAnimation/TheRenAndStimpyShow''. The first one explained why kids go to school: "Your parents are aliens, and while you're at school, they shed their human skins and breathe dryer lint!" Another said that camel humps are where gasoline comes from (one hump for regular, two for premium and unleaded). Even Stimpy himself didn't buy that one.
* This happened on a regular basis on ''WesternAnimation/KingOfTheHill'', and not just from Dale Gribble: pretty much every regular character had engaged in one of these in the series run. In one episode, this is partially averted when an oncologist tells Bobby that there's some ridiculous amount of intestine in a person, something like several thousand miles, to which Hank replies in common sense fashion that if that were true, a steak would have to shoot through a person at the speed of sound in order to make it out of someone by the next day.
* On ''WesternAnimation/GarfieldAndFriends'', Garfield starred in a skit called "It Must Be True" featuring several of these. Among them, Wyoming doesn't actually exist: Amerigo Vespucci had extra space left over when drawing the map of America, so his cat gave him the idea to name the blank space Wyoming, which is Italian for "no state here" (as proof: have you ever met anyone from Wyoming? Of course not). The episode ends with Garfield claiming that dogs have no brains, then discovering that his entire audience is made of dogs, who proceed to clobber him for that one. (Before this, he discovers his cue cards are loaded with dog jokes, and has to throw the lot of them out to avoid getting killed - the "dogs have no brains" one is the one he missed.)
* In ''WesternAnimation/SpongebobSquarepants'', Patrick Star comes up with loads of these, usually in TheBlindLeadingTheBlind situations with Spongebob. They both believe them. Subverted in their knowledge of [[BearsAreBadNews seabears]]. Every single camping tip they stated turned out 100% factual.
* In ''WesternAnimation/FostersHomeForImaginaryFriends'', Bloo makes up a lot of stuff and believes all of it. Just one example is [[AsLongAsItSoundsForeign his idea of what "the European language" is]].
* In one episode of ''WesternAnimation/CowAndChicken'', Chicken comes out with a bunch of these when he's convinced that he's a genius just because he put on glasses, claiming things like that the Spleen are war-like aliens from the Beta-Carotene system, and that Poopy the Clown was the first man in space.
* One episode of ''WesternAnimation/{{Arthur}}'' has DW starting a neighborhood science class where she teaches blatantly wrong facts, such as that [=H2O=] stands for "Hose + Oxygen", hence why water comes out of the hose. Arthur gets so fed up with it that he takes her to the science museum to teach her the proper facts, [[spoiler:where she reveals she had been getting them deliberately wrong so Arthur would take her to the museum, when previously he claimed he never would.]]
* Greg from ''WesternAnimation/OverTheGardenWall'' has a habit of reciting these and adding, [[CatchPhrase "That's a rock fact!"]] (holding up his painted pet rock). He appears to distinguish "rock facts" from actual facts, sometimes.
* [[https://youtu.be/_P5mNoSaV3E Teddy Roosevelt: You So Crazy]] was an animated {{mockumentary}} made by Creator/AlexHirsch for the "24-Hour Toons" project. The short claims that Theodore Roosevelt had twenty-six split personalities (several of which served on Roosevelt's cabinet), that he attempted to wage war on the sky, and that he was ultimately eaten by William Howard Taft.

[[folder:Real Life]]
* In real life, where things don't always have a dramatic purpose, little known facts are used to kill time, or fill unsold ad space, or otherwise apologize for having nothing to say. How many ways have you heard that it's impossible to kiss your elbow, or that glass is really a liquid, or other such anti-wisdom? These "facts" are often equally useless whether they're true or false, and the only good that ever comes of it is the occasional ''Series/MythBusters'' or ''Series/{{QI}}'' episode.
* {{Eskimo|Land}}s don't actually have [[MemeticMutation over nine thousand]] [[LanguageEqualsThought words for snow]]. Or even many more than English's "slush", "sleet", "blizzard", "powder", and so on. They really only have two: Snow on the ground, and snow in the air. Everything else comes from combining these with other words, or adding adjectives.
* The notion that a goldfish has a memory of only a [[ViewersAreGoldfish few seconds]] is false. Actually, goldfish have fairly good memory for fish. Also, [[Series/MythBusters Jamie Hyneman]] is excellent at training them to remember obstacle courses.
* [[Wiki/{{Wikipedia}} The Other Wiki]] has an entire page of [[http://en.wikipedia.org/wiki/List_of_common_misconceptions common misconceptions]].
* During the 1980s trivia craze, many giant books of "facts" and "trivia" were published aimed at inquisitive children. Some of the information within them was true; some of it was genuinely believed true at the time; some of it consisted of already-debunked urban legends; and a great deal of it was ''this.''