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[[quoteright:350:[[ComicStrip/ThePerryBibleFellowship http://static.tvtropes.org/pmwiki/pub/images/rabbitpit4_9373.png]]]]
[[caption-width-right:350: [[NoEndorHolocaust But what about the new rabbits now in the hole?]] ]]

->'''Baris:''' There must be thousands of them!
->'''Kirk:''' Hundreds of thousands.
->'''Spock:''' [[LudicrousPrecision One million, seven hundred seventy-one thousand, five hundred sixty-one]]. That's assuming one tribble, multiplying with an average litter of ten, producing a new generation every twelve hours over a period of three days--
->'''Kirk:''' [[FinishingEachOthersSentences And that's assuming that they got here three days ago—]]
->'''Spock:''' ''Also'' allowing for the amount of grain consumed and the volume of the storage compartment--
-->-- ''Series/StarTrekTheOriginalSeries''

A creature which reproduces at an alarmingly fast rate. Often, there will be only one to start with, suggesting that it can reproduce asexually. If not asexual, the creature may employ FaceFullOfAlienWingWong to extend its list of potential mates to outside its species or employ ExpressDelivery to bring on the next generation immediately. In extreme cases, there may be [[NoConservationOfMass more total weight]] of offspring after a few generations than there was weight of available food. [[ArtisticLicensePhysics Which is completely impossible]]. Rabbits and rodents tend to show this trope. TruthInTelevision to an extent-- but often comically exaggerated.

Often the real reason to fear a RidiculouslyCuteCritter, SmallAnnoyingCreature, AdorableEvilMinions, or a KillerRabbit especially if they employ the ZergRush on their foes. If they pose a threat more due to eating all available food in the area then they are a HordeOfAlienLocusts.

Compare MookMaker. Contrast EndangeredSpecies.

----
!!Examples:

[[foldercontrol]]

[[folder:Advertising]]
* A Visa commercial showed a man buying a pair of rabbits for his daughter. After the man fills out a check, the pet store owner takes so long to verify it, the rabbits "get busy". The pet store gradually overflows with their offspring.
* An advertisement for Volkswagen featured ''cars'' breeding until they filled a city's streets completely. The model in question? The Rabbit, of course.
[[/folder]]

[[folder:Anime and Manga]]
* The man-eating rabbits in ''Manga/PetshopOfHorrors''.
* ''Anime/YuGiOh'': Early on, Kuriboh's main strength comes from its ability to multiply into the thousands in the course of a single ''turn'', allowing them to swamp even the most powerful opponents with self-destruct attacks.
** It does require a Spell Card called "Multiply" in order to do this; the version of this card in the actual game has a much less powerful effect.
* ''Manga/{{BioMeat|Nectar}}'': The eponymous creatures. Unfortunately for [[TheEndOfTheWorldAsWeKnowIt everyone]], they're also {{Extreme Omnivore}}s.
* ''{{Franchise/Digimon}}'': In the second movie [[note]]or the middle of the first English dubbed movie[[/note]], the villain replicates himself several million times in just a few minutes. This is justified in that he's on the internet, and is explained as being a type of virus. Furthermore, the copies don't have nearly the same resistance to damage that the original does, as a SpamAttack destroys everything ''except'' the original.
* Scarfies in ''Anime/KirbyOfTheStars''
* ''Manga/{{Naruto}}'' features creatures called Onbaa in episode 185. After Naruto spends most of the episode with a baby Onbaa [[SecurityCling clinging]] to his back, they, in Tsunade's words, "mate like rabbits" outside of the village; courtesy of a flock of eagles, ''everyone'' in Konoha, human and animal alike, has a baby Onbaa clinging to them by the end of the episode.
[[/folder]]

[[folder:CardGames]]
* There are a lot of things like this in ''TabletopGame/MagicTheGathering'', although the ones that spring to mind immediately are the [[HiveMind Slivers]], [[EldritchAbomination the Eldrazi]], and [[http://gatherer.wizards.com/Pages/Card/Details.aspx?multiverseid=180455 this.]]
[[/folder]]

[[folder:Comic Books]]
* A human example is Mother of Champions from DCComics. Her power is to conceive a litter of 25 children each time she has sex, who complete gestation in 3 days, after which she gives birth. These metahuman offspring are [[SuperStrength superhumanly strong]], but [[YoungerThanTheyLook age ten years for each day they're alive]], so they are used as expendable cannon fodder by the Chinese government -- she has no contact with them once they are born. She has apparently given birth to thousands of these offspring, sports a perpetual [[ObviousPregnancy pregnant belly]], and relies on a robotic chair with six insectile legs to carry her around, as she gets too large to walk on her own.
* ''ComicBook/MythAdventures'': In Creator/PhilFoglio's comic adaptation, there's a RunningGag about small dragons that reproduce on contact with water. One of them happens to get into a market stall demonstrating umbrellas, and after that they keep showing up everywhere, until at the end of the scene the original owners are forced to round them all up. (The artist added even more dragons when the comic was reprinted as a graphic novel.)[[note]]The dragon, and the duo seen trying to dispose of it, originated in Foglio's gamer humor strip, ''ComicStrip/WhatsNewWithPhilAndDixie''.[[/note]]
* ''{{ComicStrip/Garfield}}'': Played with in an early strip, in which the eponymous cat tosses a pair of ''coat hangers'' into an empty closet. It only takes ''until the end of the same 'strip'' for them to multiply until they fill the closet to bursting.
** Another strip does the same thing with bunny slippers left under the bed.
* An issue of ''[[Franchise/StarTrek Star Trek: Alien Spotlight]]'' focuses on tribbles. In this version, they are at least semi-intelligent, and use their breeding offensively. There's also the implication that their breeding caused some sort of disaster, possibly due to lack of resources. And they did the breeding in response to Klingons ("rufflefurs") threatening the humans that showed up.
[[/folder]]

[[folder:Film]]
* ''{{Film/Tron}}'': The Grid Bugs.
* Sammael in ''Film/{{Hellboy}}'' reproduces two copies of itself for each one that's killed.
* ''Film/{{Evolution}}''.
* The... host-thing in ''Film/{{Slither}}''. Literal explosion, too. [[spoiler: Poor Brenda.]]
* The Crites in the ''Film/{{Critters}}'' sequel were also rapid breeders.
* ''Film/{{Gremlins}}'': The Mogwai/Gremlins. Don't get them wet.
* In ''Film/{{Godzilla 1998}}'', the species of the mutant lizard was capable of laying up to two hundred eggs asexually, threatening to replace humans as the dominant species on Earth. [[spoiler: Imagine if the original Godzilla was capable of that?]].
* ''{{Franchise/Alien}}'' series: The Xenomorphs. Give the queen somewhere cozy and warm and she'll carpet it with eggs.
** A ''literal'' Explosive Breeder, in fact.
* ''{{Film/Tremors}}'': Shriekers, the second stage of Graboid life-cycle are this.
* Played for laughs in ''[[Disney/{{Fantasia}} Fantasia 2000]]''. In the Noah's Ark sequence, when the animals [[IncrediblyLamePun disembark]], there are still two of every kind, except for the rabbits - twenty or thirty of them hop by an astonished Donald Duck.
[[/folder]]

[[folder:Literature]]
* The guinea pigs in the short story "Pigs is Pigs" by Ellis Parker Butler (and the Disney cartoon adaptation).
* ''[[Literature/CoDominium The Mote In God's Eye]]'' examines this in detail with the Moties; not only do they breed rapidly, they're biologically unable to avoid breeding. Their race has been destroying itself in apocalyptic wars and rebuilding from the ashes of their world for hundreds of thousands of years.
* In David Eddings' ''Literature/TheElenium'', the insect-like Seekers would, if permitted, cover the Earth with their eggs and feed all life to their offspring.
* ''Literature/{{Fragment}}'': One reason the island organisms pose such a danger to the global ecosystem is that they're ''all'' this trope.
* ''Literature/{{Ringworld}}'': City Builders are extremely fertile, such that every act of mating within their species automatically results in offspring. Females also go into heat periodically, making abstinence all but impossible for them. They consciously subvert this trope by mating with other sorts of hominid.
* ''Henry Huggins'': One of the books in [[BeverlyCleary Beverly Cleary's]] series has Henry buy a pair of guppies, only for the guppies to breed until his room is covered in fishbowls and feeding fish takes up all of his free time.
* ''Literature/TheRollingStones'' by Creator/RobertAHeinlein: Martian Flat Cats. One flat cat produces a litter of eight kittens every thirty days or so. Not so bad comparatively, unless you're on the spacegoing equivalent of a RV and your trip lasts almost six months.
* The Gryphons in ''Literature/TheWayfarerRedemption'' were born pregnant - with nine more Gryphons. Gorgrael's advisor intended them to only breed for three generations (Giving a total of 820 Gryphons), but Gorgrael found a way to make it self-sustaining. Since he kept the pregnant generation away from the front lines until they gave birth, getting rid of them was a serious problem for the heroes.
* The space spiders (Organism 8198) from ''Literature/IntoTheLookingGlass'' are an interesting example. They were created as a bioweapon against the [[HordeOfAlienLocusts Dreen]], and in any other environment they eat and breed at ''barely'' subsistence level. If they do have Dreen to eat, however...in only a couple hours, one spider dropped onto one dead bioform can multiply into a tidal wave of scuttling purple death that eats every Dreen on the field ''[[FriendlyFireproof while leaving everything else unharmed]]''. It's fully as awesome as it sounds.
* ''Literature/GalaxyOfFear: The Swarm'' introduces thumb-sized drog beetles. A well-fed pair of them is noted to produce ten eggs in a day - and once the eggs have hatched, it only takes a day for the offspring to be ready to breed. In small numbers they're fairly harmless and docile, but in enormous swarms they will [[EatenAlive eat people alive]].
* This was humanity's great advantage against the elves in the Ryria Revelations. Elves were better than humans individually in every way: stronger, faster, tougher, more technologically adavanced, and better at magic. But where humans could replenish their numbers in decades, elves needed millennia. As one character put it, "[the elves] were drowning in a floodtide of humanity"[[/folder]]

[[folder:Live Action TV]]
* ''Franchise/StarTrek'': The most famous example is the tribbles, which did mention that they reproduce asexually. In fact, they are actually ''born'' pregnant, and as long as they're fed, they'll keep making more tribbles. WordOfGod states that the tribbles were based on the rabbits in Australia [[note]]//In ''The Trouble With Tribbles: the Birth, Sale, and Final Production of One Episode'' David Gerrold says "Look — I thought I was telling the “rabbits in Australia” story. When rabbits were first introduced to Australia, they multiplied at an incredible rate because there were no predators or natural enemies to keep them in control. It was an ecology story -- and a spaceship is the perfect setting for it because a spaceship must be a balanced ecology."[[/note]]. [[spoiler: Ironically, these creatures were instrumental in identifying the actual villain in the episode.]] It's probably a good thing the Klingons and tribbles instinctively hate each other, since otherwise they would have wiped out all life on several planets. Nuking their homeworld was probably a bit much. "Do they still sing songs about the Great Tribble Hunt?"
* ''Series/{{Sanctuary}}'': The Nubbins. Basically tribbles with eyes and teeth, plus the ability to become mostly invisible. Oh, and they're sexually juiced up from lots and lots of pheromones, which also affect humans.
* In an episode of ''Series/FatherTed'', Dougal got a pet rabbit, and promises Ted he'll be careful with it. Cut to a week later, and there are rabbits all over the room, and neither Ted nor Dougal even notice.
* On a season-finale episode of ''Hoarders'', a TruthInTelevision example played out for a man who'd let his three pet rats -- one male, two females -- escape from their cage months earlier. He didn't have the heart to let them starve, or to separate the females from the litters they'd hidden in the walls, so just kept putting down food for them. Result? A ruined house from which over ''three thousand'' fancy rats were removed by humane-society workers.
* The Nanites, on ''Series/MysteryScienceTheater3000''.
* ''TheBasilBrushShow'' used this as a RunningGag. In one episode. They bought two rabbits. However as the scenes pass, more and more appear.
--> "There's these two here... And those two there! How did that happen?"
* Referenced in ''HogansHeroes'' when Carter catches a rabbit and suggests they keep it as a pet.
--> '''Carter''': One rabbit won’t be too much trouble, will it, Colonel?
--> '''Hogan''': Carter, my boy, I must tell you the truth – there is no such thing as one rabbit.
[[/folder]]

[[folder:Mythology]]
* Echidna, Mother of Monsters. Many adaptations (''TabletopGame/DungeonsAndDragons'' for example) record her as the Ur-Monster, the ancestor of a large portion of the world's monstrous population... usually the near-mindless sorts, leaving the [[WhatMeasureIsANonHuman semi-humanoid or otherwise intelligent monstrous races]] to have been created by their own patron deities or whatever.
[[/folder]]

[[folder:NewspaperComics]]
* In ''PricklyCity'', Kevin is the Lost Bunny of the Apocalypse. This is awkward when you are given form that calls for you to list your siblings.
[[/folder]]

[[folder:Video Games]]
* ''Moria'', ''{{Angband}}'', and other related {{Roguelike}}s have several mostly low-level monsters which, as the in-game descriptions say, "can breed explosively." The most notorious of these are the worm masses, in all their [[UndergroundMonkey annoying]] [[PaletteSwap color variants]]. Even worse is in ''[[VideoGame/AncientDomainsOfMystery ADOM]]'', where creatures get stronger as you kill more of them.
* ''VideoGame/DwarfFortress'' has cats, which can actually breed so fast that if you dump a bunch into [[spoiler:'''[[PhysicalHell hell itself]]''']] they will still breed faster than they are killed. Their, ah, fruitfulness, would not be a problem by itself, as only a very few animals need to eat yet and cats aren't one of them -- so they're an infinite source of meat and leather, if you don't mind violating conservation of matter. However, unlike most animals, cats adopt their owners rather than the other way around, and once this happens, they can't be butchered, and killing them in some other, [[MakeItLookLikeAnAccident completely unintentional]] fashion will give their pet dwarf a bad thought. Keeping them, on the other hand, will wreak havoc on your framerate -- and of course, they'll breed more kittens. The massive framerate issues from an uncontrolled cat population has been nicknamed a "catsplosion".
** Birds and rabbits have been added to the animals dwarves can keep. Rabbits actually have some form of population control-- they need to graze on grass or fungus in a pasture, or they'll starve to death. Despite this, "releasing" them into cavern pastures full of fungus has had the expected results of rabbits breeding faster than they could be killed by wildlife, and on occasion even killing particularly puny Forgotten Beasts on their own ([[spoiler:PhysicalHell doesn't grow grass or fungus, so the rabbits starve too fast to ZergRush the demons]]).
** Birds on the other hand do not require food yet, they lay and incubate eggs in large clutches, and it is theoretically possible to surpass the population cap many times over by having forty female turkeys (a dozen or so eggs per clutch) and one male, and enough nestboxes for a ''massive'' [[FanNickname birdsplosion]].
* Space Monkeys in ''SpaceQuest V''. They actually ''exploded a space station they were in''.
* One of ''VideoGame/KnightsOfTheOldRepublic'''s sidequests has the player dealing with an invasion of gizka -- small cute critters with an exponential breeding rate that are basically the ''StarWars'' counterpart to tribbles -- on their ship. They're apparently considered pests on many worlds and many different traders in the game stock gizka poison.
* ''RatchetAndClankGoingCommando'': The [[GoddamnedBats Protopets]]. They also reproduce asexually by spitting their offspring fully formed from their mouths. If you miss even one of a group of them, they will do just that the second you turn your back, often ending up with more than there were originally. It's no wonder that [[spoiler:they were the focus of the villain's plot]].
* ''[[{{VideoGame/Diablo}} Diablo 2]]'': Some of the beetles, particularly the ones in hell, however, they don't have fast maturing rates, and the kids act much differently then the parents in terms of attack plans, making it more of a MookMaker.
* ''{{VideoGame/Halo}}'':
** The Flood. The carrier forms literally explode to disperse infection forms. The infection forms also mutate their hosts implausibly fast. The Flood are like a macro-scopic version of TheVirus.
** The Grunts. Their homeworld is a DeathWorld where natural flame geysers are but one hazard among many. One way the Grunts cope with this as a species is by breeding very rapidly. When taken out of that environment, they have to be given contraceptive chemicals in their food and breathing gas to keep their population growth manageable. However, these restrictions are lifted in times of serious war when the Covenant [[CannonFodder need more light infantry]].
* ''VideoGame/QuestForGlory'': The antwerp is a ''literal'' Explosive Breeder.
* Cerebus' in ''VideoGame/GodOfWar'' could spit out Cerebus Seeds, nasty little puppies that would grow into full-grown Cerebus', and spit out more Seeds... One mini-boss fight in the game was basically trying to kill a small group of them before you got overwhelmed.
* The Palm OS game ''[[http://en.wikipedia.org/wiki/Space_Trader_%28Palm_OS%29 Space Trader]]'' has the Tribbles. Woe betide you if you're carrying food goods while they're on your ship. If you can find the tribble collector, though, you could sell them off for some serious credits.
* The Gonarch in ''{{VideoGame/Half-Life|1}}'', also qualifying as a MookMaker. Apparently the final stage in the life cycle of [[PersonalSpaceInvader Headcrabs]], it is essentially an enormous quadrapedal exoskeleton with an equally enormous testicle dangling from it, from which it spawns an endless amount of underdeveloped Headcrabs until Gordon kills it.
* ''Unholy War'': The Prana Devils. Their out of battle ability is to produce another prana unit. In battle, they lay eggs with hatch into baby pranas that chase the opponent.
* The krogan of ''Franchise/MassEffect'' ''used'' to be this trope in order to withstand their DeathWorld home planet. Scanning one former krogan colony world showed that they reached critical overpopulation in ''one generation''. If it weren't for the [[DepopulationBomb genophage]], they could easily have overrun the galaxy. The genophage reduces them to one live birth in a thousand (the rest being stillborn). If they didn't kill each other so fast this would leave them with fairly stable population ''growth'' rate.
** In VideoGame/MassEffect3 a character comments that a fully fertile, healthy female can have, wait for it, '''a thousand children in a year'''. Like the insects of Earth, on their homeworld most would die, but ''off'' Tuchanka and with significant medical technology, and with clans wanting to have troops with which to wage war... Krogan also have very long lifespans. They do not follow the ImmortalProcreationClause at all.
** Salarians, to some extent. Females lay dozens of eggs automatically every year. If these go unfertilized they become males. If fertilized, they become females. Salarians have [[WeAreAsMayflies short lifespans]] of forty years, so they must mature fairly quickly. However, they also self-regulate; they only fertilize ten percent of their eggs and write up complicated reproduction contracts around those instances. Even so, all the worlds they colonize have high populations.
** There are also Pyjacks, which are much like the Gizka before them in KOTOR. These were formerly called "space monkeys" in ''Mass Effect 1'' and have become a major pest on the Krogan homeworld.
* ''{{Starcraft}}'': The {{zerg|Rush}}. In fact, their gameplay mechanics are based around in producing millions and millions of little creatures.
* Here's a fun experiment: Take any two [[HotSkittyOnWailordAction compatible]] Franchise/{{Pokemon}}, and leave them at the Day Care. Once you have your egg, time how long it takes for the next one to appear. [[http://trickeria.deviantart.com/art/Pokemon-THAT-S-JUST-GROSS-167322186 Repeat ad nauseum.]]
** If one of them has a different Trainer ID (was traded for), but they're both the same species, breeding will go insanely fast, and the Day Care owners will even comment that they seem to like each other a lot.
* In ''VideoGame/EpicMickey'', Oswald the rabbit has 420 Bunny Children. They're adorable and eat [[FootSoldier mooks]].
* In ''BioMetal'', a computer analysis apparently shows the titular monsters increasing in such a number that, if their planet is not destroyed within 32 hours, they would take over the entire galaxy!
* ''{{Creatures}}'': Norns. Especially a genetic variant known as Fast-ager norns, who reach adulthood within seconds, live forever and are incredibly fertile. Many Fast-ager norns also go through pregnancy extremely fast, leaving them ready to breed almost immediately. If it weren't for the population limit preventing new eggs from hatching, they'd crash your game.
* In ''GalacticCivilizations'', the Torians and custom races with the same Super Ability breed ''four times as fast'' when they're happy. This tends to cause morale problems due to overpopulation, but on the other hand boosts your income (more people = more taxpayers) and makes it hard to invade your worlds unless the enemy has [[KillEmAll Spore Ships]].
* The Minecraft rabbits mod allows two rabbits to breed a baby rabbit when placed in close proximity. The issue it that [[http://www.youtube.com/watch?v=G2clZL-9AIM this gets going exponentially when put in a small enough space.]]
* In ''VideoGame/TheGuardianLegend'', one of the enemies in the labyrinth areas is a [[DemonicSpider blue spider]] that if left unkilled, turns orange, then red, then it splits into seven identical copies of itself. These individual copies can split even more, making things a little... complicated.
* Early builds of ''VideoGame/{{Scribblenauts}}'' had bunnies that spawned infinitely if two bunnies are next to each other until it [[GameBreakingBug crashed the game]]. Today, they still do that, but only until the budget bar fills.
* The X Parasites of ''VideoGame/MetroidFusion'', asexually-reproducing spores that can infect anything, kill the host, and take on its form and skills. Their numbers were kept in check by the Metroids, so it turns out exterminating them in ''VideoGame/MetroidIIReturnOfSamus'' [[NiceJobBreakingItHero wasn't such a smart idea.]]
* ''StarControl'' has the Shofixti, a sentient rodent species. At the time of ''Star Control II'', due to the war against the Ur-Quan, their species is down to [[AdamAndEvePlot one male and six females]]. Bring them together and the species repopulates within a few weeks, and gives you a cheap supply of crewmembers for your fleet.
** The Spathi heavily exaggerate this, being a former prey species with few natural defenses. While it's not elaborated on, one prominent Spathi captain remarks that he grew up with over 18 thousand siblings. The day his mother called him by name was one of the happiest days of his life.
* Mother Maiamai of ''VideoGame/TheLegendOfZeldaALinkBetweenWorlds'' has exactly 100 babies that you must thoroughly search Hyrule and [[DarkWorld Lorule]] in order to rescue.
[[/folder]]

[[folder:Web Original]]
* ''ChakonaSpace'' has the Faleshkarti, when they reach maturity they become obsessed with sex, sex triggers a hormone that decreases their intelligence, and the only way to slow the hormone's progression is to get pregnant. Also, they're {{Hermaphrodite}}s so every single one of them can give birth. When the Federation makes contact with them every inch of land on their homeworld is covered with arcologies and the oceans had been converted into massive algae farms. [[spoiler: Federation geneticists eventually discover a way to prevent the neural degradation and lower their sex drives, which was rather fortunate as they were breeding more quickly than they could colonize new planets]]
* [[http://makeyourownfurryandotheranimals.wikia.com/wiki/Erin Erins (pronounced EE-rihns)]], Females can reproduce at will and the species has two ways of reproduction (for females anyway).
[[/folder]]

[[folder:Western Animation]]
* ''{{WesternAnimation/Rugrats}}'' has a pair of gerbils exploding into a huge, seething gerbil-sea in the basement in the space of two weeks.
* ''WesternAnimation/EdEddNEddy'': a pair of rabbits reproduced so quickly that they filled a garage to bursting within a few hours. It did not help that Ed was allergic to rabbits. The entire cul-de-sac was overshadowed by a ''tsunami made entirely of rabbits''.
-->'''Johnny:''' I told you bunnies would take over the world! ''And they have!''
* One Creator/TexAvery cartoon has two rabbits conjured on a singer's arms produce about six bunnies in the time it takes him to hide said arms behind his back (about a second).
** Another Tex Avery cartoon (based on the FairyTale ''The Elves And the Shoemaker'') shows some elves towing a long rolling tray with two bunny slippers on the front of it. It goes behind a pillar, and when it comes out the other side, the tray is covered in tiny bunny slippers.
** A commercial pokes fun at the length of credit card verification by having a pair of rabbits a girl and her father bought multiply exponentially.
* ''The Naughty Naughty Pets'' took this to an utterly insane level, having rabbits literally ''pop out of thin air''. The entire planet was coated with them after about two minutes.
* The {{Disney}} short ''Pigs is Pigs'' has this with guinea pigs. We start with two and by the end of the short there's well over a million. When two go out of view temporarily, expect at least three kids to show up when they come back into sight.
** [[ShownTheirWork Which is, in fact, the usual size of a healthy cavy litter]].
* An idea for an ''OswaldTheLuckyRabbit'' short had Oswald being overwhelmed by the never-ending influx of bunny children, even going as far to attack the stork.
** ''VideoGame/EpicMickey'': Oswald The Lucky Rabbit has 420 kids. His mate? [[InterspeciesRomance Ortensia, a cat.]]
* ''ThePartridgeFamily [[RecycledInSpace in 2200 A.D.]]'' had Rubi-roobian Rubits, which were mostly a ShoutOut to Tribbles.
* ''{{WesternAnimation/Futurama}}'': Started happening to penguins.
--> "And the males have started laying eggs!"
** Happened when Bender duplicates himself creating two smaller Benders and they duplicate themselves and so on. They multiply and become smaller until they are atom sized and infest the Earth.
* ''WesternAnimation/TheSimpsons'' : Bull Frogs were depicted as this when Bart, ignorant of the purpose of quarantine laws, brought one with him when the family went to Australia.
* Whatever ''{{Chowder}}'' and Panini are, as they resemble rabbits. In the flash-forward finale, Panini has had ''fifty babies'', twenty of which she had popped out the previous day.
* ''TheSmurfs'' had fuzzles, which multiplied whenever they ate something.
* ''WesternAnimation/TheAngryBeavers'': The beavers decide to stay up all night because they're not tired. After a night of shenanigans and fun, they realize that they accidentally unplugged their clock and have been awake for thousands of years. In the SequelEpisode, they find themselves still not tired so they use various methods, including using a herd of sheep to sleep, to no avail. Eventually, they go to sleep for another thousands of years, then they find their house in the middle of a futuristic world over-populated entirely with sheep.
* ''WesternAnimation/MyLittlePonyFriendshipIsMagic'': The Parasprites from "Swarm of the Century". Like the famous tribbles, they also reproduce asexually and end up eating everything in Ponyville. Interestingly, and rather realistically, the whole infestation can be traced to Fluttershy finding one and deciding to take it home with her. This is ''exactly'' how such non-native species can get a chance to wreak havoc in RealLife.
* The Jakovasaurs on ''WesternAnimation/SouthPark''. The two that are the last of their kind breed and children keep popping out. When the town tries to get rid of them with a fixed game show, the prize is a trip to France for himself and 50 of his closest relatives.
** Oddly inverted with St. Peter Rabbit, who apparently had just ''one'' descendent (Snowball) despite being of this trope's archetypal species.
* The "[[TheHerculoids squishface]]" from ''{{Sealab 2021}}'' when its has alcohol. Also shares characteristics with [[LilAbner shmoos]] and {{Gremlins}}.
* In ''WesternAnimation/AdventureTime'' episode "Web Weirdos" a Spider give birth to thousands of spiders that drown Finn and Jake.
* ''TheTransformers'' G1 episode "Kremzeek" was about a little [[EnergyBeing energy creature]] who did this.
* The ''WesternAnimation/ActionLeagueNow'' episode, "Chickie Chickie Bang Bang" has a rare species of Easter Chick that [[Main/BigEater have been known to eat anything]] and multiply at an alarming rate after they've eaten.
[[/folder]]

[[folder:Real Life]]
* Homo sapiens (humans) actually downplay this trope; our population skyrocketed in recent centuries because we so thoroughly conquered all competition and our environment. It's difficult to call humans explosive breeders when it takes nine months to produce a single, initially-helpless (for YEARS) offspring from two viable members of both sexes.
** How fast is the human population growing? About than 50 years ago, the number of people on Earth was just 3 billion, less than half of the current (as of 2013) '''7 billion plus'''. Since the rate at which our population is growing is also increasing, its not unlikely that many people will live to see the population triple as well.
** Actually, given that fertility rates in developed countries tend be ''drastically'' lower that undeveloped or developing ones, most projections have the population leveling off at around 10-11 billion by 2050, and ''declining'' thereafter.
* The infamous Australian rabbit incident. In 1860, a dozen rabbits were released there, for "adding hunting as a spot of home." It backfired. In only ten years they had multiplied to over 600 million rabbits, which eradicated native marsupials, caused erosion by overgrazing and [[CarnivoreConfusion preyed on small livestock such as poultry]].
* TruthInTelevision for [[http://en.wikipedia.org/wiki/R-selection#r-selection many, many animals]]. These animals tend to be [[EverythingTryingToKillYou lower on the food chain]], so most of their offspring get eaten. That's why the planet hasn't been overrun yet. Moving one of these species to a new habitat that lacks their natural enemies, though, is a ''bad idea''. Case in point: rabbits, sheep and mice in Australia.
** Some microorganisms have a gestation period measured in ''[[http://en.wikipedia.org/wiki/Bacteria#Growth_and_reproduction minutes]]''. Which is why they mutate so fast. What takes the average macroorganism (maturity at four years) to evolve -- say, seventy generations for it to be well entrenched and spread through the population -- takes the average bacterium ''one day''.
*** To give you an idea of just how fast bacteria populations can grow if unrestricted, if it takes ten minutes for one bacterium to become two, then in an hour you will have sixty-four. In five hours you will have one billion. In twenty-four hours you will have 2.2 times 10^43--about ''one hundred times the mass of the entire Earth!'' In forty-eight hours they will have exceeded the mass of the visible universe. [[CaptainObvious Most micro-organisms reach stationary phase due to space or food shortages, or environmental pressure, long before this happens]].
** Many invertebrates facilitate this trope by breeding parthenogenetically, eliminating the delay imposed when a mate must be located. Aphids and rotifers are probably the best-known examples of this.
*** Aphids even go one step further than not needing to mate to get pregnant; they are actually born pregnant.
** Rats tend to go everywhere humans do. When the rats arrived on ships in Pacific and Caribbean islands and started taking over, humans tried to solve the problem by importing mongooses as predators - thus creating a new problem when the mongooses devastated native fauna.
* Ignorant human fishermen inadvertently invoke this trope when they cut starfish in half, thinking they're eliminating the competition for mussels and oysters. Too bad the pieces of a bisected starfish can regenerate, creating ''two'' hungry echinoderms...
* Internal parasites must invoke this trope in spades, as only a tiny fraction of their eggs or larvae will be lucky enough to make it into a new host organism. Tapeworms, the [[UpToEleven uber-example]], are basically a continuous strand of gonads with an anchor at one end.
* All mites are born with a half dozen embryos already inside of them. Each one has one male embryo, and a handful of females. The females all take turns being impregnated by their brother. When they're ready to be born, they eat their way out of their mother, and leave their brother to die.
* Their extremely short reproduction cycle is one of several reasons why ''Drosophila melanogaster'' (fruit flies) are very useful as model organisms, e.g. for genetic experiments.
* In population biology, "k-selected" species are limited by competition for resources in their environment, which is why they invest heavily in a few offspring to insure their survival. "r-selected" species are in environments which allow rapid population expansion (e.g., flowers in spring time). They have as many offspring as possible but invest little to ensure individual children's survival. The "Explosive Breeder" is r-selected.
* TruthInTelevision for many fish, but special mention goes to the Ocean Sunfish ("Mola Mola"), which can lay up to ''300 million'' eggs in one spawn!
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