History Main / SpareBodyParts

* ''Series/BabylonFive'': Centauri have two hearts. Unlike Klingons, Centauri can die if either heart fails. In the season five episode "The Very Long Night of Londo Mollari", in which Londo suffers a heart attack, we find out more details: the right heart is a large and simple muscle, much like a human heart, whereas the left heart is a knot of blood vessels that gives the blood pressure an extra kick and also functions much as a human kidney (mollusks on earth have a somewhat similar system). Surgery on the left heart is correspondingly difficult due to its complexity. The left heart is considered the seat of the soul in traditional Centauri culture. Males also have [[ExoticEquipment six prehensile penises sprouting from their backs (aligned in pairs along the spine), corresponding to six similarly-arranged slits in the female]].
* The lounge singers in the original ''Series/{{Battlestar Galactica|1978}}'' had two mouths each. Meanwhile those insectoid things had four arms. Eek, in both cases.

*** Time Lords have only one heart in their first incarnation and the second one develops, along with other physiological advantages like the respiratory bypass system, as a result of their first regeneration[[note]]this bit of lore was devised primarily to clear up the continuity issue of the First Doctor having only one heart, with the two-hearted Doctor not being established until [[Recap/DoctorWhoS7E1SpearheadFromSpace the Third Doctor's debut story]][[/note]]. ([[ContinuityDrift Although some other novels say otherwise.]])

* ''Franchise/StarTrek'''s Klingons have a number of physiological redundancies such as an extra liver, eight-chambered heart, a double set of ribs, redundant nerve systems and an extra lung. In at least one episode where that's brought up, the show also points out that this has its disadvantages; while it allows for survival if one of them fails, the fact that there are more of them increases the chance of one going wrong in the ''first'' place, causing problems in the process.
** It's not just internal organs. ''Series/StarTrekDiscovery'' once shows a Klingon taking a leak, and there are ''two'' streams.

* ''Franchise/StarTrek'''s Klingons have a number of physiological redundancies such as an extra liver, a double set of ribs, redundant nerve systems and an extra lung. In at least one episode where that's brought up, the show also points out that this has its disadvantages; while it allows for survival if one of them fails, the fact that there are more of them increases the chance of one going wrong in the ''first'' place, causing problems in the process.

* Part 6 of the ''[[ComicBook/MarvelUniverse Marvel]] Fact Files'' says that the Kree have duplicates of several internal organs.

* ''Franchise/MarvelUniverse'':
** Spiral of ''ComicBook/XMen'' has six arms, though the extra pairs are [[ArtificialLimbs robotic additions]] made by Mojo. Fittingly, one of her aliases is "[[Myth/HinduMythology Shiva]]".
** Minor ''ComicBook/XMen'' villain -- practically no more than a mutant thug -- Fourarm has, well, four arms. That's about all there is to him.
** Then there's the ''ComicBook/SpiderMan'' villain Doppelganger, who looks like Spider-Man except with ComicBook/{{Venom}}'s mouth and four extra arms.

* Spiral of Creator/MarvelComics has six arms, though the extra pairs are [[ArtificialLimbs robotic additions]] made by Mojo. Fittingly, one of her aliases is "[[Myth/HinduMythology Shiva]]".
* Minor villain -- practically no more than a mutant thug -- Fourarm has, well, four arms. That's about all there is to him.
* And then there's Spider-Man's enemy Doppelganger, who looks like Spider-Man except with Venom's mouth and four extra arms.

* In ''WesternAnimation/TurningRed'', when partially transformed Mei keeps both her human ears alongside her panda ears.

* ''{{WesternAnimation/Futurama}}'':

* ''WesternAnimation/TeenTitans'': Starfire is quite happy she has nine stomachs when she is spoonfed some {{Mind Control}}ling pie and spits it back before digesting it.
* In ''WesternAnimation/GravityFalls,'' Mermando, a merman, casually mentions that he has "like, seventeen hearts. Horrifying but true!"

*** Time Lords have only one heart in their first incarnation and the second one develops, along with other physiological advantages like the respiratory bypass system, as a result of their first regeneration. ([[ContinuityDrift Although some other novels say otherwise.]])

*** Time Lords have only one heart in their first incarnation and the second one develops, along with other physiological advantages like the respiratory bypass system, as a result of their first regeneration.

--> '''Surgeon''': Heart.\\

* ''WesternAnimation/TeenTitans'': Starfire is quite happy she has nine stomachs when she is spoonfed some [[MindControl Mind Contolling]] pie and spits it back before digesting it.

* TwoFaced

* The Shokan (the race of Goro and Sheeva) in ''VideoGame/MortalKombat'' all have four arms.

* ''Literature/{{Discworld}}'': It's offhandedly mentioned that banshees have two hearts in ''Discworld/GoingPostal''. This can also apply to [[TheIgor Igors]] - they're not born with the extras, they're just ''very'' good at SelfSurgery.

Compare ExtraDigits. Can overlap with LittleBitBeastly, if the character has both human and animal ears.

Compare ExtraDigits.

A Subtrope of BizarreAlienBiology. Humans have two eyes, two legs, two arms, two lungs, one mouth, etc., as do most of our most familiar animals. Want to make a race seem alien? Give them extra of something.

* ''WesternAnimation/MenInBlack'' features the Sintillians. Not only do they have two hearts, but neither heart ever stops working; so long as they have at least one and "nobody drops a piano on them", they're effectively immortal. When Alpha steals a Sintillian's heart, K makes it clear to J that the OrganTheft is still a big deal. "You have ten toes. You wake up one morning with one missing, how would you feel?"

[[folder:Web Comics]]

* In an episode of ''{{WesternAnimation/Futurama}}'', Bender was in an accident that cost him the use of his arms. Music/{{Beck}} gave him tiny replacement arms mounted on his neck (which Beck used to play the harmonica). Later when he regained the use of his original arms, he'd use both pairs in expressions.
** Zoidberg as well. He's got several of everything, and can even talk through a vivisection (much to the dismay of vivisectors).

* A prostitute in the original ''Film/TotalRecall1990'' has to wear a special kind of brassiere... The [[Film/TotalRecall2012 2012 remake]] trailer shows a woman who makes men wish they had three hands.

* Dwarves in ''Webcomic/TheOrderOfTheStick'' have [[http://www.giantitp.com/comics/oots0375.html two livers.]] This is the in-story justification for their +2 fortitude save against poison, and why it is so hard for them to die from alcohol poisoning.

* ''Literature/TheHitchhikersGuideToTheGalaxy'''s Zaphod Beeblebrox: Two heads, three arms.

* In ''Literature/{{Animorphs}}, Andalites sort of resemble centaurs, which obviously means extra legs, but even their humanoid parts have seven fingers on each hand, two extra eyes on stalks, and apparently three hearts.

*** The Eighth Doctor novel "The Adventuress of Henrietta Street" suggests that the second heart might be the source of some sort of psychic link between the Time Lords and Gallifrey, and the control centre for their various alien traits (regeneration, rapid healing, sensitivity to time etc).