[[quoteright:269:[[WesternAnimation/FindingNemo http://static.tvtropes.org/pmwiki/pub/images/Finding-Nemo_Synch-Swarming-001_9738.png]]]]
[[caption-width-right:269:Those rehearsals clearly paid off...]]

->''"Curse you Plankton, and your ability to join together to form a working human ear!"''
-->-- '''Mr. Krabs''', ''WesternAnimation/SpongeBobSquarePants''

It's a common sight gag in humorous animation that fish, insects and other swarms have an amazing ability to coordinate movement into very exact shapes. (Especially impressive with fireflies in the night.)

This one is interesting because you can see a little bit of how it works. The idea of fish schooling-up to form words is pretty ridiculous, but because we are used to seeing schools of fish performing coordinated movements, we can suppress disbelief easily to enjoy it. Ditto, the flocking of birds, insects, etc.

This is kind of TruthInTelevision as real life swarms/schools/flocks can move with amazing coordination, and maintain a shape (usually a sphere or some other simple geometrical pattern) even when disturbed.

Common gags include:
* Asking a swarm if they've seen something, and the swarm helpfully forms an arrow pointing to the direction it went.
* The target of a swarm (usually bees) is hiding, and when they can't find it they form a question mark for no apparent reason except for the benefit of the audience.

When the swarm takes a human shape and is made of invertebrates, it overlaps with TheWormThatWalks. When it's bees that are swarming, it overlaps with GoshHornet. Expect this to happen if someone disturbs or walks into the HornetHole.

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!!Examples of this trope include:

[[foldercontrol]]

[[folder:Anime and Manga]]
* Issue 7 of ''{{Blame}}'' has the main character briefly interacting with a swarm of microorganisms, which assumes various simple forms -- :) for "hello", O for "yes", X for "no", etc -- to answer his queries. [[JustifiedTrope Justified]], in that the swarm is actually controlled by an AI, in a highly futuristic world where this kind of trick is pretty common.
* ''Anime/PantyAndStockingWithGarterbelt'' has a swarm of flies forming into a human hand... who gives [[ButtMonkey Chuck]] a full-scale swatting (after he did so with one of them), throwing Chuck into a microwave, topped off with the swarm [[FlippingTheBird giving him the middle finger]], complete with WrittenSoundEffect "[[RefugeInAudacity FUCK!]]"
* In ''SDGundamForce'', the Bagu-Bagu swarms do this.
[[/folder]]

[[folder:Films -- Animated]]
* Disney's ''Disney/AliceInWonderland''. While Alice is traveling through the Tulgey Wood she meets a group of mome raths, who form themselves into the shape of an arrow to lead her to a path. [[http://www.youtube.com/watch?v=2imO2AiE9Ik See it here]] on [=YouTube=], starting around 4:50.
* In ''WesternAnimation/FindingNemo'', a school of moonfish (voiced by John Ratzenberger) does a series of impressions for Dory and becomes an arrow to give her and Marlin directions to Sydney. [[LampshadeHanging Lampshaded]] when they mention that they've practiced their impressions.
* In ''Disney/ThePrincessAndTheFrog'', the fireflies do this.
* ''Disney/TheEmperorsNewGroove'' has a swarm of bees do this while chasing Yzma [[FunnyBackgroundEvent back and forth]].
[[/folder]]

[[folder:Film -- Live-Action]]
* In ''Film/{{Jaws 2}}'', Brody is alarmed by a shape in the water. It turns out to be a school of fish, and the shark is elsewhere. It is not clear to the audience exactly how similar the shape was to a shark.
* In the third movie of ''Film/TheMatrix'', the sentinel robots make a hand-like shape. [[spoiler:Later, robots form a face and it talks to Neo.]] Probably {{Justified|Trope}} because there is just that much computing power guiding them.
* In ''TheNuttyProfessor'' with EddieMurphy, the professor proposes to his girlfriend by attracting fireflies into the words "Marry me?" using a synthesized firefly pheromone.
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[[folder:Literature]]
* There was the book ''Lorenzo'' by Bernard Waber, where a school of fish looked like a big fish and scared the sharks away. One of them was an odd-colored fish, so it had trouble staying away from predators until the other fish agreed to make it be the eye.
** ''Swimmy'' by Leo Lionni is similar.
** Some fish species in real life employ synchronized schooling like this.
* The swarm of "snow gnats" in ''ASeriesOfUnfortunateEvents'' can take on forms like hoops and arrows when attacking people, whom they enjoy stinging for no good reason whatsoever.
* MichaelCrichton's ''Literature/{{Prey}}'' has ridiculous magic nanobot swarms. They do this, and it's mentioned that their AI was based on insect swarms. By the end of the book, they do it convincingly enough that a swarm can be mistaken for a human being.
* The end of ''Discworld/AHatFullOfSky'' from ''Literature/{{Discworld}}'' features this.
* Ygramul from ''Literature/TheNeverendingStory'', which forms a devilish face, a giant scorpion, a fist...
* ''Literature/HarryPotterAndTheGobletOfFire'': The Irish mascots at the Quidditch World Cup, a swarm of flying leprechauns that forms shapes to amuse the audience. They get pissed off when Bulgaria does well, eventually forming a hand making a [[FlippingTheBird "very rude gesture indeed."]]
* In ''ThePowerOfFive'', some of the Old Ones take the form of a swarm of flies that mould themselves into the shape of sword-wielding men on horseback. If anyone tries to strike the figures, the swarm just dissipates and re-forms, and one of the protagonists wonders whether when they attack their swords stay solid or separate and sting their victim to death.
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[[folder:Live-Action TV]]
* On an episode of ''PushingDaisies'', following a case where a woman says she was attacked by a "terrifying bee man", Ned speculates about being chased by a human-shaped swarm of bees. Turns out [[spoiler: it was actually a person covered in bees]].
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[[folder:Newspaper Comics]]
* One ''{{Foxtrot}}'' strip showed fireflies writing "HA HA HA HA" to insult Paige.
* One ''KrazyKat'' strip, where fireflies write "Illekk Krezy Ket" (it's for an election).
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[[folder:Videogames]]
* The arcade game ''[[SevenTwenty 720]]'' has a swarm of bees that chase the player if he hangs around the hub world for too long. The swarm takes on various threatening shapes including a hammer, a skull, an arrow, and a pair of scissors.
* The swarms of bees in the Jungle Hut stage of ''VideoGame/YoshisStory'' form a large open palm to prevent you from passing by them.
* The Smorgs in ''VideoGame/PaperMario'' combine like this to form a giant...[[GiantSpaceFleaFromNowhere monster]]...[[BuffySpeak thingy]]...
* This appears in a level of ''LogicalJourneyOfTheZoombinis'', once a branch with a hive has been angered enough to chase off the nasty Fleens in the shape of scizzors.
** They can also swarm in the shape of an arrow or a storm cloud. They also swarm to heavy metal.
* In ''VideoGame/EvilGenius'', bees from the bee hive trap will form a question mark if no targets are in range. When they spot one, they form an exclamation point before attacking.
* One of the enemies in ''VideoGame/KirbySqueakSquad'' is a swarm of bees or other small insects that form themselves into various threatening shapes, such as Master Hand or a sword.
[[/folder]]

[[folder:Web Originals]]
* Skitter of ''{{Literature/Worm}}'' is capable of doing this. She has put it to good use on several occasions, creating warning of impending danger and acting as a form of ad hoc command and control during crisis situations.
* According to the Ninja of ''WebVideo/AskANinja'', this is a power of killer-killer bees, which are "killer bees that kill killer bees." One unfortunate victim of theirs tried to escape a swarm by diving into a pool of water. The killer-killer bees then formed into a bee submarine, dove into the water, and shot the man dead with a bee-torpedo.
[[/folder]]

[[folder:Western Animation]]
* The episode "Risky Beesness" from ''WesternAnimation/ChipNDaleRescueRangers'' has a swarm of bees forming not only flying hearts on behalf of the queen, but also stealing musical instruments while hypnotized by a thief playing a mind-controlling tune.
* Used all over the place in the ''SchoolhouseRock'' short "Busy Prepositions."
* If a character in an old MGM or Warner Bros. cartoon encounters a beehive, it will almost inevitably cause the swarm of bees to change into some familiar shape; arrows, anvils, boxing gloves, even a flyswatter for an ironic twist.\\
Seen it happen to Tom and Sylvester the cats, Daffy Duck, Yosemite Sam, Elmer Fudd, Foghorn Leghorn etc.
* One of the ''{{Domo}}'' shorts on Nicktoons TV has the title character going ice-skating and following a school of fish swimming just beneath the ice.
* In the DonaldDuck cartoon "Inferior Decorator", Donald gets into a feud with a bee. Toward the end of the cartoon, it calls on all its friends, which swarm out of the hive and form a question mark, as if to say "Yeah, what do you want?"
* [[LampshadeHanging Lampshaded]] in an episode of ''SpongeBobSquarePants''. Plankton rallies his extended family to aid him in finally stealing the Krabby Patty secret formula.
-->'''Mr. Krabs''': Curse you Plankton, and your ability to join together to form a working human ear!
** Also done by jellyfish in the episode "Jellyfish Jam".
* Very common sight in ''TheNewAdventuresOfWinnieThePooh''.
* One of ''ThePinkPanther'' cartoons has the title character annoy a swarm of bees. While taking cover inside a house blocks them, the bees take a form of a drill, and create a hole in the door that they fly through.
* In ''WesternAnimation/TomAndJerry'', the ants that invade Spike's picnic are quite organized, which helps them walk off with the entire food supply...and Spike's son.
* One episode of ''Life with Louie'' had a scene in which Andy teaches a swarm of bees to spell his name. More conforming to the trope when you consider that he had to correct their spelling after the first attempt ("Andie").
* Done in ''WesternAnimation/MyLittlePonyFriendshipIsMagic''. In the episode "Fall Weather Friends", Rainbow Dash gets chased by a swarm of bees, and they form a "?!" when she manages to hide from them.
** Also done by the Parasprite swarm in "Swarm Of The Century". They attack Rainbow Dash and form things like a beard and a bikini on her body before she shakes them off.
[[/folder]]

[[folder:Real Life]]
* [[http://www.wildlifephoto-presti.com/Photo_of_the_month/01_2004.htm starlings]], [[http://parmenio-web.com/exped/sardine/sardine-run-price.htm sardines]], [[http://www.flickr.com/photos/pats0n/2644119888/ mackerel]], [[http://allfloridabeeremoval.com/BeeSwarm/BeeSwarmsAllFloridaBeeRemoval.html bees]], [[http://en.wikipedia.org/wiki/Driver_ant siafu]], [[http://robotics.youngester.com/2008/08/swarm-robots.html robots]].
** [[http://www.metro.co.uk/news/802617-starlings-give-twitchers-the-bird Starlings]], FlippingTheBird.
* Swarming in military strategy is the act of striking at an enemy force with mobile elements which hit and run, perpetually disrupting the enemy and destroying command and control by preventing the enemy from being able to react before the situation has changed. This is not a simple ZergRush of throwing troops at an objective in rapid waves, but an extremely complex, difficult to coordinate, and devastatingly effective plan to cause confusion and disorientation.
[[/folder]]

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