History Main / NestedMouths

Note that some fish [[TruthInTelevision actually]] have something like this, called a [[http://en.wikipedia.org/wiki/Pharyngeal_jaw pharyngeal jaw.]] While most of these are simply immobile bony blocks in their throats to "chew" food, in the case of the [[https://m.youtube.com/watch?v=taguVjkRXtI moray eel,]] it has the unique ability to actually slide its forceps-like pharyngeal jaw up its throat and out of its mouth to grab food and pull it down its esophagus. (Amusingly, this ability was only discovered in 2007, [[LifeImitatesArt three decades after]] Giger designed the xenomorph.)

* ''WesternAnimation/GeneratorRex'': Unlike most [=EVOs=], Circe can pass off as completely human, until she feels threatened enough to use her [[MakeMeWannaShout sonic scream]]. When that happens, her jaws split open, and a second mouth protrudes out from around her first mouth. She can still talk normally like this, not that one can see her original mouth moving from inside her second one.

** "Danger! Chupacabra!" is depicted with a long Xenomorph-like proboscis portruding from its jaw, and ending in a LampreyMouth.

* ''WesternAnimation/BountyHamster''. Another ''Franchise/{{Alien}}'' spoof, where a baby alien resembling a small xenomorph shoots out a dozen nested mouths in an attempt to bite Cassie. However in "Save the Whale", Marion is surrounded by a whole bunch of baby xenomorphs who all do this trope... The next time we see Marion, [[NotSoDire he's giggling over being licked by multiple tongues.]]
* ''WesternAnimation/GeneratorRex'': Unlike most [=EVOs=], Circe can pass off as completely human, until she feels threatened enough to use her [[MakeMeWannaShout sonic scream]]. When that happens, her jaws split open and a second mouth protrudes out from around her first mouth. She can still talk normally like this, not that one can see her original mouth moving from inside her second one.
* ''WesternAnimation/TransformersPrime'', this happens to [[spoiler:CYLAS / Breakdown, when Knock Out infuses him with Synthetic Energon mixed with Dark Energon, and his mouth turned into a [[Film/{{Blade}} vampire]] [[Franchise/{{Alien}} xenomorph]], and is out to suck out energon.]]

-->''[[Music/DeanMartin If it lurks in a reef, and has two sets of teeth,]] [[IncrediblyLamePun that's a moray...]]''

* ''WesternAnimation/{{Planet 51}}'' had a 1950's era alien society, where one female citizen kept a four legged alien dog based off the Xenomorph from ''Franchise/{{Alien}}'', complete with acid pee and second tongue.

* The Lizard Men from ''Film/{{Flash Gordon|1980}}'' have their faces inside their lizard mouths.

* In ''Film/{{Evolution}}'', when a party of women encounter what most resembles a green pig, they are unnerved but also endeared- until it opens its mouth and something like a tiny vulture's head reaches out to bite one of their fingers.

* In ''VideoGame/AmericanMcGeesAlice'' the Queen of Hearts monster has the Mad Hatter's face inside her mouth, with Alice's face inside ''his''. See this at 4:11 in [[https://www.youtube.com/watch?v=n9tDTj6ltL8 this video.]]

* In ''{{VideoGame/Doom}} 3'' and its expansion packs, the Maledict has [[spoiler:the head of Dr. Betruger on its tongue. And Dr. Betruger appears to be the one in control]].

* The animatronics in ''Videogame/FiveNightsAtFreddys''; a good example would be [[http://img1.wikia.nocookie.net/__cb20140815073111/5-nights-at-freddys/images/7/74/Tumblr_nabpdoGhCn1rzaw7vo1_500.jpg Chica.]]
* Abyss[[spoiler:, the corrupted form of Zasalamel]] from the VideoGame/SoulSeries has two rows of teeth, one inside the other.

-->'''Freeza:''' So, Namekian, what do you think of my third form?
-->'''Piccolo:''' I think Creator/RidleyScott's gonna sue somebody.
-->'''Freeza:''' What are you talking about? ''(mouth pops out, then retracts)'' Let me touch your skin!
* [[Website/SCPFoundation SCP]]-[[http://www.scp-wiki.net/scp-1132 1132]] is a Mexican woman who has a venomous snake for a tongue.
* The serpent-like... thing in Chapter 1 of ''[[Webcomic/FifteenMinds Legend of Legendary Mighty Knight]]'' has what appears to be an entire face on its tongue, which itself has its own tongue. Given the serpent's lack of eyes, it's possible that the tongue-creature inside its mouth is the actual animal.

* Guinea pigs, being ruminants, have an extra set of teeth in the back of their mouths to help grind their food. Which is why they often chew after they're long finished eating.

* ''Franchise/GreenLantern'': Parallax has nested jaws.

* ''Comicbook/XMen'': Bliss the Morlock has an extra mouth on her tongue.
* ''Comicbook/TheSimpsons'': One issue has an ''Alien'' spoof with a xenomorph Marge who sports a tongue that looks like Mr. Smithers, who himself sports a smaller tongue looking like the chipper Ned Flanders (which he promptly bites off in annoyance).

* The ShapeshifterDefaultForm of the Polymorph in ''Series/RedDwarf'' is very similar to the creature in ''Alien''. Its inner mouth is used to suck out people's emotions.
* An episode of ''Series/TheXFiles'' features a demon with a snake for a tongue.
* In a parody of ''Alien'' at the end of the ''Series/MysteryScienceTheater3000'' episode ''Film/FireMaidensOfOuterSpace'', Timmy (Crow's evil doppelganger) is revealed to have one within his beak. It is very disturbing and very funny.
* ''Series/KishiryuSentaiRyusoulger'' has a unique take on Cerberus, that famous three-headed dog from Greek mythology, as a MonsterOfTheWeek - instead of side-by-side, it has a massive dog head with its open mouth revealing another dog's mouth, which is open to reveal a third.

[[caption-width-right:300:Disturbing Phallic imagery not required.]]

* [[Wiki/SCPFoundation SCP]]-[[http://www.scp-wiki.net/scp-1132 1132]] is a Mexican woman who has a venomous snake for a tongue.

Note that some fish [[TruthInTelevision actually]] have something like this, called a [[http://en.wikipedia.org/wiki/Pharyngeal_jaw pharyngeal jaw.]] While most of these are simply immobile bony blocks in their throats to "chew" food, in the case of the [[https://m.youtube.com/watch?v=taguVjkRXtI moray eel]], it has the unique ability to actually slide its forceps-like pharyngeal jaw up its throat and out of its mouth to grab food and pull it down its esophagus. (Amusingly, this ability was only discovered in 2007, [[LifeImitatesArt three decades after]] Giger designed the xenomorph.)

* ''Franchise/DoctorWhoExpandedUniverse'': The hideous-looking [[spoiler: but ultimately heroic]] Wrarth in the Fourth Doctor's comic-strip adventures have something like a cross between this and a prehensile tongue. Amusingly, one of them eats ''a slice of cake'' with it.

* [[https://pathfinderwiki.com/wiki/Omnipath Omnipaths]], a variant type of [[EldritchAbomination Algollthu/Aboleth]] in ''TabletopGame/{{Pathfinder}}'', have ''three'' sets of nested jaws.

* ''WesternAnimation/TransformersPrime'', this happens to [[spoiler: CYLAS / Breakdown, when Knock Out infuses him with Synthetic Energon mixed with Dark Energon, and his mouth turned into a [[Film/{{Blade}} vampire]] [[Franchise/{{Alien}} xenomorph]], and is out to suck out energon.]]

* The [[http://en.wikipedia.org/wiki/Cymothoa_exigua tongue-eating louse]] is a parasite that infests fish. It consumes the tongue and replaces it, grabbing a bite of whatever the fish eats. For better or worse (?), though, the fish can use the louse like a regular tongue.

* ''VideoGame/SARSearchAndRescue'', a game which rips off the ''Alien'' franchise, contains a XenomorphXerox enemy with a double mouth like it's inspiration. The main difference is that this game's Xeno-equivalent have it's mouth on a ten-meter OverlyLongTongue that bits you from halfway across the screen.

* ''VideoGame/SARSEarchAndRescue'', a game which rips off the ''Alien'' franchise, contains a XenomorphXerox enemy with a double mouth like it's inspiration. The main difference is that this game's Xeno-equivalent have it's mouth on a ten-meter OverlyLongTongue that bits you from halfway across the screen.

* ''WesternAnimation/ChipNDaleRescueRangers'' has a scene from an obvious ''Franchise/{{Alien}}'' parody which takes nested mouths [[UpToEleven Up to Three]]. The alien in question has three mouths nested in one another, the last one is just big enough to pinch the Ripley look-alike's nose.

* In a parody of ''Alien'' at the end of the ''Series/MysteryScienceTheater3000'' episode ''Film/FireMaidensFromOuterSpace'', Timmy (Crow's evil doppelganger) is revealed to have one within his beak. It is very disturbing and very funny.

[[folder:Tabletop Games]]
* In the ''TabletopGame/YuGiOh'' trading card game, the monster "Danger! Chupacabra!" is depicted with a Xenomorph-like inner jaw portruding from its mouth, and ending in a LampreyMouth.
[[/folder]]

* In ''Anime/HeroicAge'', Cervius's frenzied form has this.

* This is one of the features of the monsters in the ''Franchise/{{Alien}}'' series, as pictured above.
** There's actually a reason for this beyond RuleOfScary. Originally the "tongue" was meant to be the head of the Chestburster, with the "adult" Alien being a biomechanical shell it built around itself. However, this was dropped during the design phase when the Chestburster was redesigned to look like a fetal version of the adult because Geiger's earlier design [[{{Narm}} looked like an undead roast chicken]].

[[folder:Comicbooks]]
* Parallax from the ''Franchise/GreenLantern'' comics has nested jaws.
* Bliss the Morlock, from ''Comicbook/XMen'' has an extra mouth on her tongue.
* In the graphic novel ''Comicbook/BlackHole'' (about teens who get an STD which mutates them in various ways) one of the major characters has another mouth in his throat. It has a tongue and can talk a little.
* One issue in ''Comicbook/TheSimpsons'' comic series had an Alien Spoof with an Alien Mr. Burns who sported a tongue that looked like Mr. Smithers, who himself sported a smaller tongue looking like the chipper Ned Flanders (which he promptly bites off in annoyance).
* The hideous-looking [[spoiler: but ultimately heroic]] Wrarth in the [[Franchise/DoctorWhoExpandedUniverse Fourth Doctor's comic-strip adventures]] have something like a cross between this and a prehensile tongue. Amusingly, one of them eats ''a slice of cake'' with it.

* Conodonts, an ancient group of jawless marine chordates, had one set of interlocking tooth-spikes on their lips, several more sets on and around their tongues, and two more sets embedded in the walls of their pharynx.