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->"''My name is Shadow. I'm the world's [[TropeNamers Ultimate Life Form]]. There's no time for games, farewell!''"
-->-- '''Shadow the Hedgehog''', ''VideoGame/SonicAdventure2''

A character that can be described as perfect in some or every way. A being that's at the top of the EvolutionaryLevels. They're basically the purpose of life itself, but ''what'' they are tends to vary.

Some works have them as [[PhysicalGod gods]], others can only describe them as [[EldritchAbomination totally incomprehensible entities]], others state that [[AdaptiveAbility the most adaptable creature]] would have this title, and in others still, it's nothing more than a simple yet hardy cockroach. A formerly normal person might even become one, usually through some form of [[{{Transhuman}} enhancement]], or going OneWingedAngel. Paradoxically, a being without limits, or one that has limitless potential, may qualify as well.

A variant has the character be at the top of a specific type of life, instead of being the apex of all life as we know it. For example, a perfect human, dog, tree, predator, [[MechanicalLifeForms machine]], alien, magical entity, etc.

Another (more [[DeconstructedTrope realistic]](?)/[[DownplayedTrope downplayed]]) variant has the character simply have the peak abilities of the type of lifeform it is. Something like a human that [[TheAce excels at all mental and physical tasks]].

The concept is most often [[LampshadeHanging lampshaded]] by having the being turn out not to be really perfect or invincible, or [[TurnedAgainstTheirMasters turning against its creators]] (especially if it's a villain in the story). Just because someone [[AGodAmI believes himself or herself perfect]] [[NotSoInvincibleAfterAll doesn't mean they actually are]].

[[MostWritersAreHuman There is an incredibly high chance that their appearance looks human(ish)]]; sometimes the transformation to this ultimate form will [[BishonenLine make them look human]] even if they previously lost their humanity along the way or were never human to begin with. This is frequently lampshaded as well; everyone imagines the Ultimate Lifeform to be infinitely beautiful and attractive, and while it may in fact be "perfect" it got that way from so many {{Power Upgrading Deformation}}s that it's become an EldritchAbomination by dint of ugliness.

Works that attempt a more realistic approach may substitute individual ultimate powers for a more "ultimate species" approach; hive aliens are often given this treatment, or have attaining this state through successive evolution as a goal. Creatures of this type will tend less towards beautiful and graceful and more towards quickly reproducing, hard to eradicate, and dangerous to encounter.

The idea of an Ultimate Life Form derives from a gross misunderstanding of the theory of evolution by natural selection - evolution promotes the survival of the entity best suited '''for its specific niche''', and if that niche changes or disappears the species will have to change again or die out. There is no absolute [[GoalOrientedEvolution direction towards "progress"]], or objective scale by which one can judge one particular species "more evolved" or "superior" to another. And no, there's not any way for a life form to be "perfectly adapted" for '''every''' possible niche, because [[OxymoronicBeing this would require numerous contradictory traits]]. Not to mention that ''multiple generations'' are required for the adaptation to complete via natural selection. This doesn't stop {{Evilutionary Biologist}}s from claiming this as the objective of their work while [[ArtMajorBiology still claiming to be scientists]]. There have been Real Life claims that certain species or people do indeed fit the description, so adding examples to that section is perfectly fine.

Someone with superpowers may hold this view of themselves; see SuperSupremacist.

See also the {{Ubermensch}}; it's a matter of interpretation how closely these concepts overlap, but there are those who conflate the two.



[[folder:Anime & Manga]]
* From ''Manga/JojosBizarreAdventureBattleTendency'', [[BigBad Kars]] achieves this form through the [[AmplifierArtifact Red Stone of Aja]] being inserted into a stone mask. This grants him the ability to transform himself on a cellular level, giving him a HealingFactor way above that of Vampires or Pillar Men, as well as the ability to transform parts of his body into parts of various animals. He has all the abilities of any creature that has existed, or will ever exist. This includes the abilities of [[PlayingWithFire Esidisi]] and [[BlowYouAway Wamuu]], and [[ThePowerOfTheSun Hamon]] as powerful as ''the surface of the sun.'' He becomes so strong that he cannot die [[FromASingleCell unless all of his cells are destroyed]], and the only reason he is defeated at all is [[spoiler:due to a stroke of luck banishing the undying Kars into space, where his powers are unable to allow him to return to Earth. His super-adaptive body eventually turns all of his cells to stone, effectively freezing him in place for the rest of eternity. Now unable to die, despite desiring it, he eventually stops thinking.]]
* From ''Manga/FullmetalAlchemist'', [[spoiler: Father's final form had the power of God. Unfortunately for him, the power put too much strain on his body, eventually rendering him vulnerable to counterattacks.]]
* Cell from ''Anime/DragonBallZ'', a bio-engineered creature made from DNA harvested from the greatest fighters in the series up until that point considers himself to be this, and says so in as many words. Upon [[OneWingedAngel taking on his final form]], Cell declares himself "[[AGodAmI perfect]]". As he explains after surviving his own self-destruct technique due to [[FromASingleCell having one cell left]]: with Namekian DNA he can regenerate from any injury, with Frieza and King Cold's DNA he can survive the vacuum of space and injuries that a Namekian can't survive like decapitation or being blown to bits, and with Saiyan DNA he gets stronger with each fight and gains a massive power boost whenever he recovers from an injury (regeneration normally drains the subject's energy when used).
** Android 17 also believed he was the strongest on the Earth, until Cell came and [[NoHoldsBarredBeatdown ... well, the poor, overconfident android never even stood a chance.]]
* In ''Anime/DragonBallSuper'', Goku Black, [[spoiler:being the combination of Goku's never-ending growing body and the [[PhysicalGod godly status]] of the Supreme Kai-In-Training Zamasu]], considers himself to be this because of who he is. He ultimately reaches his endgame when [[spoiler:Goku Black fuses with Future Zamasu, becoming Fusion Zamasu. Theoretically, Fusion Zamasu would have had Goku's power with Zamasu's CompleteImmortality thanks to the permanently-fusing Potara Earrings. [[DidntThinkThisThrough However, because Goku Black is still mortal]], this compromises Merged Zamasu's immortality, allowing him to be harmed and killed.]]
* ''LightNovel/TheTwelveKingdoms'': Tentei (The God of the Heavens); the rulers and officials of kingdoms can err, but this guy certainly can't.
* ''Manga/{{Bleach}}'':
** Aaroniero Arruruerie boasted that since he gains the powers and memories of any creature he eats, as well as the powers and memories of anything ''they'' ate, he has the potential for endless evolution. He's proven wrong with fatal results when Rukia stabs him through the head. "Potential", after all, only helps if you live long enough to achieve it and Aaroniero demonstrates that you're a lot less likely to do that [[TooDumbToLive if you're a moron]].
** Szayelaporro Grantz calls himself the ultimate, perfect being because he has a phoenix/''Franchise/{{Alien}}''-like system of death and rebirth, but you can bet Mayuri proved him wrong. Gruesomely, and with a TheReasonYouSuckSpeech about perfection being the enemy of a scientist.
** Sosuke Aizen, after he obtains the Hogyoku, claims to be the ultimate, if not perfect being. [[spoiler:Then Ichigo defeats him in two blows and the power rejects him. Aizen might've been rendered unkillable due to the Hogyoku, but Ichigo clearly had his number ''before'' using the Final Getsuga Tenshou (which, while largely ineffective, destroyed most of the extra features of Aizen's OneWingedAngel forms). All of this precedes the manga's final arc, which features villains even further up the SortingAlgorithmOfEvil (most of all, Yhwach, ''[[HeroKiller who killed Yamamoto]]'') and the revelation that "Zangetsu" (long story there) was suppressing Ichigo's power for the entirety of his life up to that point.]]
* ''Anime/{{Betterman}}'': Kankel is described as the final stage of evolution, so much so he has the nickname of "Best Man". His powerful abilities help back this claim up. Interestingly, he's also a sentient form of [[spoiler:cancer]].
* ''Anime/HeavyMetalLGaim'': The BigBad of the series, Emperor Oldna Poseidal fits this description since he's virtually immortal.
%%* Meryem, the Chimera Ant King, from ''Manga/HunterXHunter'' considers himself to be this, and [[StoryBreakerPower he's probably right]].
* ''Manga/OnePiece'': WordOfGod says that if an animal eats their corresponding Devil Fruit, then they would become the perfect specimen of that species. There is a Human-Human fruit, which makes the eating animal a werehuman, and would enlighten a human being. The former is what happened when Tony Tony Chopper ate the fruit.
* Mewtwo from the ''[[Anime/{{Pokemon}} Pokemon]]'' anime more than matched the trope, and has a lot of personality traits similar to [[Franchise/SonicTheHedgehog Shadow]]. His creators were deliberately going for "the world's strongest Pokemon", and [[GoneHorriblyRight succeeded]].
* In ''LightNovel/ACertainMagicalIndex'', Fraulein Kreutune has an AdaptiveAbility and CannibalismSuperpower. Creator/AleisterCrowley notes that she has the potential to become the ultimate life form, but at her current rate of development, it would take about 2300 years, though she would achieve it nearly instantly if she were to eat Last Order and gain her powers. One has to wonder what Crowley's criteria for ultimate life form are, as Fraulein already has CompleteImmortality. Though, honestly, in a series with [[PhysicalGod Magic Gods]] so powerful that they can literally rewrite the universe on a whim, immortality isn't saying much.
* In ''Anime/KillLaKill'', [[spoiler:[[AGodAmI Ragyo refers to herself as this]]]]. Justified because she is almost immortal, the strongest being in existence and was created by an experiment to give her high-level powers.
%%** [[spoiler: Ryuko follows the same principle as well]].

[[folder:Card Games]]
* ''TabletopGame/MagicTheGathering'':
** The Slivers are often stated to be this. Indeed, the FlavorText of the Sliver Overlord describes it as "The end of evolution."
** Creating the ultimate life form was the secret goal of the Simic Guild from Ravnica. Their Experiment Kraj was actually ''meant'' to spiral out of control.
* ''TabletopGame/YuGiOh'': Implied with [[http://yugioh.wikia.com/wiki/Herald_of_Perfection Herald of Perfection]] and its upgraded form [[http://yugioh.wikia.com/wiki/Herald_of_Ultimateness Herald of Ultimateness]]. In addition to their high stats, as long as the player has enough cards to discard, they can negate pretty much anything the opponent tries to play, making defeating them nigh impossible.

[[folder:Comic Books]]
%%* This was the original intended purpose of the Creator/MarvelComics character ComicBook/AdamWarlock and his DistaffCounterpart Paragon/Her/Kismet/Ayesha.
* ''ComicBook/XMen'':
** The villain ComicBook/{{Apocalypse}} is completely obsessed with a perverted form of evolution that decrees that [[TheSocialDarwinist only the strong may survive]]. Naturally, he views himself as the pinnacle of evolution, [[{{Hypocrite}} despite a lot of his supposed strength coming from borrowed celestial tech]].
** Decades earlier, Magneto genetically engineered a being called Alpha the Ultimate Mutant who had a pretty strong claim as well (he turned against Magneto, transforming him into a child so he could have a second chance at life.)
** When the X-Men first met Cassandra Nova, Beast speculated she was this, [[EvolutionaryLevels being to Mutants what they were to humans]]. [[spoiler:This turned out to be a RedHerring, and what she actually was ended up being was a lot more of a MindScrew.]]
* In ''ComicBook/BuffyTheVampireSlayer'' Season 8, the [[spoiler:sentient dimension Twilight considered itself to be this, since it was created by the universe to replace the old Earth dimension]].
* ComicBook/CaptainAmerica is considered to technically not have any superpowers, but instead operates at humanity's maximum physical potential. He's as strong, enduring, and dextrous as any human can possibly be; back it up with decades of military experience and he's more than a match for any actual superhuman.
* ''Franchise/{{Superman}}'':
** This is what [[ComicBook/TheDeathOfSuperman Doomsday]] was created to be. Its abilities and instincts all lend themselves to the goal of being the ultimate survivor, including, unfortunately, the instinct to seek out and kill the strongest creatures it can sense within its environment. Even worse, due to the trauma of being killed and resurrected countless times, Doomsday sees ''everything'' as a threat that needs to be killed. If that weren't enough Doomsday has probably one of the most broken [[AdaptiveAbility adaptive superpowers]] in fiction where his body regenerates and revives itself from death and every time he's killed he's becomes stronger while gaining a resistance or flat out immunity to whatever killed him previously.
** Superman himself could be seen as one, being "as strong as he needs to be" and having more powers in his ''eyes'' than most superheroes have in their entire body.
%%* The [[ComicBook/ArchieComicsSonicTheHedgehog Archie Comics']] version of Shadow the Hedgehog counts.

[[folder:Fan Works]]
* In ''FanFic/ArmoredCoreFromTheAshes'', [[spoiler:the 'Demon' project, of which the protagonist was a subject, was an attempt to create these; impossibly fast and strong (as in ''[[BulletCatch able to catch bullets in mid-flight]]'', more intelligent than almost any human alive, and incredibly devastating [[HumongousMecha NEXT]] pilots. The only subject to survive was [[MadScientist Sebastian Thermidor]], grandfather of the protagonist and the program's instigator. He went insane, but had two sons, Joshua (who would later change his last name to O'Brien) and Berlioz. Joshua used a lifetime of mental training to lock away his powers so that he couldn't use them; Berlioz went completely insane, but he too had two sons, Maximillian and the protagonist, Mikhael, known to most as 'Ghost'. Pretty much the entire family was slaughtered by Mikhael on a massive worldwide killing spree. As it turns out, their key failure was that their emotions had far too much sway over them, leaving them emotionally overloaded and unable to feel ''anything'' through the haze of emotions they had. With the exception of Joshua, who managed sealed his abilities away to stop them from affecting him, all acquired [[AGodAmI God Complexes]] and killed millions; the protagonist himself, accepted as possibly the most morally righteous of the family, killed a hundred million people to achieve his objectives after turning against his masters. So, in the end, the Demons were a textbook case of GoneHorriblyRight - perfect beings, but precisely ''because'' they were perfect, they became incredibly flawed.]]
* ''FanFic/PonyPOVSeries'':
** Celestia's [[FallenAngel Fallen Alicorn]] brother [[{{Satan}} Morning Star]] viewed himself as this, somewhat justifiably due to him being made to be the AnthropomorphicPersonification of Perfection and Beauty. However, this led to him viewing himself as better than even [[TopGod the Elders]] and trying to overthrow them, which led to his being [[SealedEvilInACan sealed]].
%%** This also appears to be what the Hooviets were aiming for in the SuperSoldier project that led to Makarov's creation. [[spoiler:Since the Shadow of Chernobull was feeding off of the Hooviets' desires when it was released, it's worked hard to make itself/Makarov into this trope for them.]]

[[folder:Films -- Live-Action]]
* Leeloo in ''Film/TheFifthElement'' is considered a "perfect being".
* The xenomorphs of the ''Franchise/{{Alien}}'' franchise are walking super-weapons that can forcibly "impregnate" virtually any living creature in order to continue their life-cycle. In [[Film/{{Alien}} the first movie]], Ash outright calls the alien a "perfect organism". ''Film/AlienCovenant'' shows that they were a deliberate attempt at this by an [[spoiler:android]] EvilutionaryBiologist who deemed both humans and the space jockeys / Engineers inferior.
* One of the many [[MultipleChoicePast probable origins for]] Irys in the ''Franchise/{{Gamera}}'' films is that it is supposed to be the ultimate evolution of the Gyaos and the perfect lifeform.
* Orga in ''Film/Godzilla2000'' tries to become this by absorbing Godzilla's DNA and mutating into a hulking behemoth with Godzilla's regenerative powers (Orga is short for "Organizer G-1", the name of the gene that allows Godzilla to heal so quickly). He would've won too, if [[spoiler:[[TooDumbToLive he hadn't stupidly tried to eat Godzilla and was obliterated by his nuclear pulse.]]]]
* ''Film/TheAndromedaStrain'': The titular entity adapts to any situation almost instantly and proves itself to be virtually unstoppable. It's even able to feed off the energy of a nuclear blast. However, in the book, it turns out that the infection is curable by [[WeaksauceWeakness hyperventilating]], and it mutates into a benign form anyways.
* ''Film/{{Evolution}}'': The basic bacteria that create the alien creatures are described as the most powerful life form. Of course, no one takes this seriously until one grows to the size of a city by absorbing vast amounts of napalm. It turns out to have the same WeaksauceWeakness as the rest of the aliens, though. Early drafts of the story went with something more like a giant psychic brain, but the writers decided a huge blob monster was more fun to fight.
* ''Franchise/StarWars'': It is heavily implied that Anakin Skywalker may have served as this, and that his creator was either Darth Plagueis and to a certain extent Darth Sidious (the latter apparently having manipulated the former into creating him among other things), or he was created directly by [[MessianicArchetype the Force itself.]]
--> "Of all the monsters I have created, I still regard Darth Vader as something of a minor masterpiece. No, he was not an entirely alchemical creation, but he was ''my'' monster nevertheless. Even though he failed to live up to his full potential, there was much pleasure in transforming Anakin Skywalker from a bright-eyed, tousle-headed youth [[FaceHeelTurn into the greatest Jedi killer of all time]]. Yes, he ultimately [[HeelFaceTurn turned against his Master]], as monsters sometimes do, but that was my fault, not his. Given the opportunity to create Vader again, I would, and with zeal."
* In ''Film/{{Species}}'', Sil was the result of an experiment to create the perfect species.
* In ''Film/JurassicWorld'', the Indominus rex is essentially created to be the ultimate Dinosaur (or at least the ultimate theropod). Much like [[Anime/{{Pokemon}} Mewtwo]], [[GoneHorriblyRight that didn't turn out well.]]
* In ''Film/ShinGodzilla'', several scientists refer to Godzilla as a perfect being. He has so much information in his DNA that he can alter his body and adapt to any situation.

* In the ''Literature/FightingFantasy'' book Sky Lord, the main antagonists are an army of supposedly perfect beings called the Prefectas, who were created by a MadScientist called L'Bastin. They appear as incredibly-athletic humans with dog heads. Upon his death at [[TurnedAgainstTheirMasters the hands of one of his creations]], L'Bastin reveals the Prefectas are not truly perfect beings, only highly-skilled warriors with huge egos. The Prefectas are ultimately defeated by cloning more of the creatures that are even more incredibly arrogant, which results in an EnemyCivilWar.

* The ''Literature/{{Alterien}}'' series. The Alteriens are superior versions of their immediate predecessors. The Alteriens have superhuman strength, speed, reflexes, senses, psychic powers and can manipulate energy at will. Furthermore, they can move through 4-dimensional space.
* The Types (Type-Moon, Type-Mercury, etc.)/Aristoteles in ''Literature/AngelNotes''. Each of them is the ultimate life form of their respective home planet or satellite, even if said celestial body doesn't support life (anymore).
* The high spirits of ''Literature/AstralDawn'' could be considered this. They were ordinary mortal humans in life before they died and left their bodies as spirits. Afterwards, they became more aware and more powerful, evolving in an age they called the Astral Dawn. Those spirits considered themselves elevated to high spirits and used their new abilities to travel through space and time. Many of them even became the gods and legends of the world. They all represent a possible future path for humanity that evolves beyond the need for physical bodies.
* In the ''Literature/HyperionCantos'' by Creator/DanSimmons, the branch of the technocore dubbed the Ultimates are working towards the creation of an Ultimate Intelligence.
* In ''DiscWorld/TheLastContinent'', the heroes encounter the God of Evolution, who, despite not understanding what the deal is with sex, believes he has achieved the ultimate life form. It's a cockroach.
** In the ''Science of Discworld'', the Lecturer in Recent Runes designs what he claims will be the ultimate survivor for Roundworld: a mile-long limpet that could survive a cometary impact (aside from a direct hit on the limpet itself). Ridcully poo-poos the idea, as the limpet will inevitably starve to death once it gets too big to feed itself.
* [[Creator/FriedrichNietzsche Nietzsche]] proposed in his book ''Also Sprach Zarathustra'' that humanity needed to evolve into what he termed the {{Ubermensch}} (Super-man); that humanity was merely a transitional evolutionary phase between apes and this perfect form of man. ThoseWackyNazis picked up on Nietzsche's theme with their idea of an Aryan master race.
* Azathoth in Creator/HPLovecraft's Franchise/CthulhuMythos is quite possibly this. It is an extra-dimensional being that simply exists, mindlessly, dreaming realities in and out of existence randomly. It exists almost like some kind of vast, incomprehensible amoeba which, when you think about it, means it started as an amoeba that could do nothing and now exists as an amoeba that can do anything. If things like Azathoth even evolved of course, they are {{Eldritch Abomination}}s after all.
* In ''Literature/GalaxyOfFear'', the BigBad designs a creature to be the ultimate SuperSoldier, having [[AllYourPowersCombined all the powers touched on in the previous books]]. It can touch people's bare skin to turn them into jelly and then absorb them, getting stronger from that; it is impervious to being fired upon and can [[HealingFactor almost instantly regenerate severed limbs]]; it can trap people in [[IKnowWhatYouFear psychic visions of their worst fears]]. It goes toe to toe with Darth Vader and holds its own, though they got interrupted. However, it turns out to be vulnerable to [[spoiler:DefusingTheTykebomb and when that starts to happen, the BigBad just [[YourHeadASplode triggers the bomb in its head]]]], which apparently it can't recover from. Aware of this, Vader scornfully says it's not so ultimate after all. [[spoiler: The MandatoryTwistEnding hints that it's still alive... though it also says that might be the wind, and since it never shows up again, well...]]
* In ''Blue Light'' by Walter Mosley, a blue light from an unknown corner of the universe hits humans on Earth and causes them to die, go crazy, or become a superior lifeform, who is the best at whatever they are doing at the time they are hit.
* [[Literature/NineteenEightyFour Big Brother]] is completely above human flaws and error, and reality itself rearranges to keep in line with what he says. He will never die, because he is one with the perfection of the Party. Or so the propaganda machine goes; it's far more likely that he's more a concept/ideal than an actual life form, played by a succession of actors.
* ''Literature/AwakeInTheNightLand'' has the Last Child, who is the human who has reached the peak of evolution. However, as the name implies, he is also the last one of mankind.

[[folder:Live-Action TV]]
* ''Series/BuffyTheVampireSlayer'':
** Adam is a FrankensteinsMonster like MixAndMatchMan made from human and demon (and robotic) parts. He claims to be stronger and more aware than any other life form ever.
%%** Twilight considers itself this.
* One MonsterOfTheWeek on ''Series/DenjiSentaiMegaranger'' was actually called "The Ultimate Lifeform."
%%* The Daleks of ''Series/DoctorWho'', in their own estimation.
* Namtar of ''Series/{{Farscape}}'' seeks to be this by grafting genetic traits of other species onto himself.
* ''Series/{{Heroes}}'': Sylar's goal is to become this. In fact, in one alternate future, he ''does'' become the ultimate posthuman (having finally stolen so many powers from other Specials he declares himself satisfied) and uses his abilities to become [[PresidentEvil President of the United States]].
* Many of these beings appear in the ''Franchise/KamenRider'' franchise:
** ''Film/KamenRiderZO'' has the Neo Organism. It's an artificially created lifeform capable of assimilating other creatures and materials into its own being and to create new creatures himself. When it reappeared as a major villain in one of the crossover movies, not even the final forms of all the Kamen Riders were enough to defeat it.
** ''Series/KamenRiderBlade'' has the artificially created Kerberos Undead. Even the formidable Giraffa Undead steered clear of it, while Giraffa normally one-hits his opponents.
** ''Series/KamenRiderFourze'' sees Zodiart Switches being used for this purpose, forcing human evolution in order to create a being capable of going into space to meet the Presenters. The BigBad considers himself a successful result.
** ''Series/KamenRiderGaim'' has this as the result of eating the Golden Fruit, granting immortality and the ability to shape the world to one's whim. It just comes at the cost of TheEndOfTheWorldAsWeKnowIt.
** ''Series/KamenRiderGhost'' has the Great Eye eventually reveal itself as one of these, a data-based lifeform with godlike powers. Takeru eventually evolves into another, but promptly discards the status in favor of being a normal living human again.
** ''Series/KamenRiderExAid'' has Gamedeus, which was created to be the ultimate Bugster and lives up to the title in terms of strength, but ends up a puppet of the real, human villain.
** ''Series/KamenRiderBuild'' sees evil organization Faust claim that this is the goal of their human experimentation.
* ''Series/{{The Outer Limits|1995}}'': In the season 1 episode "The New Breed", nanomachines involuntarily mutate the man who initially injected himself with them--to heal his cancer--into something like this, as they try to fix all types of 'limitations'. He soon develops gills so he can breathe underwater, a second pair of eyes in the back of his head to see in a 360 degree radius, and poisonous skin and more ribs to fight off attacks. As he turns into a nigh-invulnerable mutant, he realizes that it's truly a FateWorseThanDeath.
* As in the comics, ''Series/{{Smallville}}'s'' incarnation of Doomsday is this, with the twist that [[spoiler:his AdaptiveAbility caused him to take a human form when he was sent to Earth as a child, and as a result he has grown up believing he is a human and has no idea who -- or ''what'' -- he actually is]].
* ''Series/StarTrek'' gives us Khan Noonien Singh. He and his fellow "Augments" were created to be physically and mentally superior to ordinary humans. Unfortunately, their creators never considered that "superior ability breeds superior [[AmbitionIsEvil ambition]]," and the result was global war.
* The objective of the Borg of ''Series/StarTrekTheNextGeneration'' is to attain "perfection," both by augmenting their own bodies cybernetically and by assimilating the biology and technology of other cultures.
** Species 8472 is also described by the Borg as the perfect lifeform, as they're the only life the Borg have encountered that are immune to assimilation.
** [[SufficientlyAdvancedAliens The Q are for all intents and purposes omnipotent and know everything.]] They consider most, if not all, other species beneath them and have transcended anything humans can comprehend. It was even implied they might have evolved to their current state.
* ''Series/StarTrekVoyager''
** "Threshold" averts the "looking human" thing - Paris & Janeway get advanced evolution and end up looking like salamanders. This is later subject to CanonDiscontinuity, and even in the episode it's unclear if "advanced evolution" is really what's happening.
** Likewise the Omega molecule from "The Omega Directive", which is both incredibly complex yet harmonious, representing true perfection to the Borg. It's speculated that a naturally occurring particle created the Universe in the Big Bang, and the Borg attempt to isolate it is compared to a religious quest.

[[folder:Myths & Religion ]]
* {{God}} (and most of His [[CrystalDragonJesus imitators]]) may or may not be this, depending on how you define "life form". Jesus, on the other hand, is definitely an example according to Christian theology, being a human totally free of sin.
** Behemoth and [[KrakenAndLeviathan Leviathan]] were created as the ultimate land-dwelling and sea-dwelling lifeforms respectively, said to be so huge and powerful that only God himself could tame them. Some sources also add [[GiantFlyer Ziz, the ultimate sky-dwelling life form]].
** Adam and Eve were this before the Fall, but lost this status when they sinned.
** In Catholic theology, Mary, the Mother of God is this, as she is the only human being (without the divine nature [[UsefulNotes/{{Jesus}} her son]] possessed) conceived free from sin.

[[folder:Tabletop Games]]
* In ''TabletopGame/DungeonsAndDragons'' 3rd edition, creatures can have the "paragon" template, an incredibly powerful modification that reflects beings who represent the highest natural potential of their species. Such beings may be some sort of [[OlderIsBetter "original"]] form of the species, [[GoalOrientedEvolution evolutionary end point]], or other ideal. It is not necessarily anthropomorphic; any type of creature may be a paragon. Across the species however, the title belongs to the fearsome Tarrasque - a [[{{Kaiju}} giant dinosaur-like monster]], that is very hard to damage and quickly regenerates anything that manages to get through. And even if you manage to deplete its hit points, it will still come back to life in short order - you need to use Wish magic to make it stay down, ''for some time''.
* Ultimates in ''TabletopGame/EclipsePhase'' want to become the perfect transhuman, while exhumans don't bother with the "human" part. Firewall considers ultimates a ''potential'' X-risk that can be managed and directed at worse problems, while exhumans are just straight-up bad news. It helps that ultimates tend to stop short of, for example, ripping bits out of other people's minds, psychosurgically removing their own capacity for empathy, and resleeving into custom-made xenomorph creatures, while there are groups of exhumans who have done all of those.

* The "Chaos Effect" line of ''Franchise/JurassicPark'' toys had the Ultimasaurus, a genetically altered monster created from Tyrannosaurus, Velociraptor, Triceratops, Ankylosaurus, and Stegosaurus DNA to create the ultimate predator.

[[folder:Video Games]]
* ''Franchise/DanganRonpa'' has [[spoiler:Izuru Kamukura]], an entity created with all the talents that have ever been through Hope's Peak, but that had its humanity removed in order to be able to use it to the max. It was not a good idea.
* Averted with the super mutants in the ''VideoGame/{{Fallout}}'' series. The FEV virus does make them [[MadeofIron highly resilient]], 10 feet tall, immune to radiation and disease; except for the critical flaw that they're completely sterile due to the FEV virus mistaking the half chromosomes required for reproduction as damaged DNA and "repaired" it. It also requires the victim/recipient to have little to no exposure to radiation as it causes them to become pretty stupid, though in the case of East Coast mutants their minds degraded due to the immense pain of the transformation.
* ''Franchise/SonicTheHedgehog''[='s=] Shadow is the {{Trope Namer|s}}, as he's always been described as the Ultimate Life Form within the setting. Strangely, he fights a prototype Ultimate Life Form that looks like a dragon on life support, not at all like himself. Presumably, the Biolizard's need for life support is why they scaled back into a smaller body for Shadow. Curiously, during the final battle in ''VideoGame/SonicAdventure2'', Shadow comes to an epiphany that it might not be he who is the Ultimate Life Form, but ''Sonic''. Factor in the number of abilities shared between the two, how eerily similar the two appear while in [[GoldenSuperMode Super Form]], and a persistent {{Epileptic Tree|s}} that Shadow was based off of Professor Gerald's research on the ancient Echidna civilization, [[VideoGame/Sonic3AndKnuckles specifically their mural in Hidden Palace Zone depicting Super Sonic fighting Eggman in the Doomsday Zone over the Master Emerald]], and he might actually be on to something.
-->'''Shadow''': "Hahaha, Sonic! I think I've discovered what the Ultimate Life Form is... It might be ''you''!"
%% The following Pokémon example is not a duplicate. There is a Pokémon anime, and a Pokémon game. These two are different things so you can leave them alone where they are.
* ''Franchise/{{Pokemon}}'':
** Every single Pokémon has a set of Individual Values, or [=IVs=], so no two Pokémon encountered in the wild have precisely the same stats. The [=IVs=] determine how high the Pokémon's stats are versus the rest of its species, with each IV ranging from 0 to 31[[note]]0 to 15 in the Generation I and II games, as well as ''Pokémon GO''[[/note]]; a higher IV makes the Pokémon stronger in the stat that IV applies to. For instance, a Pokémon with an IV of 31 in Attack means that its physical attacks will naturally hit harder than most other Pokémon of the same species at the same level. A Pokémon with all its [=IVs=] maximised thus has the highest stats of its species before taking natures into account, befitting this trope.
** Mewtwo was created to have the ultimate battle capabilities among Pokémon. Apparently created by genetically tampering with the embryo of a Mew (a Pokémon that has [[MasterOfAll 100 base stats in everything]]), it escaped its creators and hid out in caves, waiting to challenge other strong Pokémon. Its mega evolutions also have the highest base Attack and Special Attack stat among all known Pokémon.
** Deoxys has four Formes, with its Normal and Attack Formes having very high Attack, Special Attack and Speed, its Defense Forme having very high Defense and Special Defense, and its Speed Forme having the highest base Speed stat of all Pokémon. From Generation IV onwards, its Forme can be changed at will, enabling it to be used in virtually any scenario.
** Team Plasma tried their hand at creating the strongest Pokémon of all with Genesect, a Pokémon from the Paleozoic period [[TheDreaded already feared as the ultimate hunter in said days]], now sporting an array of cybernetic enhancements such as [[ExtraOreDinary steel armor]] and a large BackpackCannon. In-game, it's a fast MagicKnight with the highest stats of any Bug-type Pokémon (discounting Arceus), matched only by a few Mega Evolutions. However, Team Plasma never actually used Genesect as N had the project cancelled, [[ScienceIsBad believing that science had ruined the Pokémon's natural beauty]].
** Upon discovering the existence of Ultra Beasts, the Aether Foundation created three artificial Pokémon to deal with the potential threat these Ultra Beasts presented to the Pokémon world. Said Pokémon were named Type: Full and created from the cells of all 18 Pokémon types so that they can use a type-changing ability to switch between all types, allowing them to counter any type of Pokémon they go up against. While the project was considered a failure due to the prototypes needing a restraining helmet to suppress their ability and keep them under control, the failed prototypes, known as Type: Null, still exist, and their original, full potential can be unlocked by ThePowerOfFriendship.
* Overlord GAIA from ''VideoGame/DigimonWorld2'' claims to be "the ultimate organism."
* The final boss of ''VideoGame/EVOSearchForEden'' purports to be a human, the ultimate lifeform. [[spoiler:Bolbox is actually a massive single-celled amoeba-like creature, with a bunch of alien evolution-steroid rocks jammed in it.]]
* Uranus is more or less said to be this in ''VideoGame/BloodyRoar''. And, given what she's capable of, It's doubtful anyone will contest it... [[http://www.youtube.com/watch?v=dF5Me2fzy-0 and live at any rate.]] This only gets stranger when dealing with the implications that Uranus, in some fashion or another, is related to Uriko (most likely either [[CloningBlues a clone]] or [[MyFutureSelfAndMe Uriko from the future]]); Uriko sported the exact same powers when she was the FinalBoss back in the first game and is hinted to have the potential to be the strongest Zoanthrope in-universe.
* [[Franchise/ResidentEvil Albert Wesker]] believes himself to be this as well as having [[AGodAmI a god complex.]] He also refers to the Tyrant as the "Ultimate Life Form" in the [[VideoGame/ResidentEvil original game]].
%%* Arguably, this is the status of the Ultimate Chimera in ''VideoGame/{{Mother 3}}''.
%%* The main villain in ''VideoGame/ParasiteEve'' attempts to create this [[spoiler:and succeeds; this creature is the final boss of the game.]]
* In ''VideoGame/ChronoTrigger,'' it's revealed at the end that Lavos' true purpose is to become such a being by parasitizing entire planets and subverting their own evolution to its own ends.
** In ''VideoGame/ChronoCross'', this is then taken UpToEleven when Lavos [[spoiler:merges with Schala and]] gains the ability to use ''alternate universes'' to learn (and destroy) everything. [[spoiler:This turns out to be its undoing when the titular Chrono Cross, which merges all universes into a single point, is used before Schala breaks free.]]
* The [[EldritchAbomination Reapers]] in the ''Franchise/MassEffect'' series think they are. [[PlayerCharacter Shepard]] can [[DidYouJustPunchOutCthulhu prove them wrong]].
** In ''VideoGame/MassEffect2'', you actually have ''three'' of the "peak lifeforms" on your squad. Miranda is genetically engineered to be the perfect human; basically a female Australian Captain America with biotics. Jack was brutally experimented on to created the ultimate human biotic; [[GoneHorriblyRight the experiments were a success]]. Grunt, like Miranda, was genetically engineered to be the perfect specimen of his species, in his case, krogan. This came with several neural imprints that allowed him to be "born" with full combat training. Each one is also a deconstruction of the trope due to their origins: Grunt's status as a tank-bred Krogan has left him with severe existential issues, Miranda's [[DesignerBabies Designer Baby]] origins have turned into the ultimate example of the BrokenAce, and Jack's origins have left her severely AxeCrazy. Shepard themself could also be counted as a ''fourth'' example, having been resurrected through bio-synthetic fusion, pushing them either into or on the cusp of {{Transhuman}} territory.
** The Krogan are a lesser form of this due to having evolved as ''[[EverythingTryingToKillYou prey]]'' on the DeathWorld that is Tuchanka, having evolved spare organs, a redundant nervous system and thick head-plates and skin that double as natural body armour. In addition to having a lifespan over a thousand years, their resilient physiology allowed them to brave the inhospitable worlds belonging to the Rachni, which no other race could withstand. Due to the harsh nature of their homeworld, the Krogan also evolved as ferocious breeders, until the deployment of the Salarian Genophage rendered one-in-a-thousand children to not be born stillborn, turning them into a DyingRace.
** Amusingly, the Vorcha actually fall under this category, as because of their natural ability to perfectly adapt to new environments within a single generation, their species hasn't had to evolve at all in millions of years. Of course, they're viewed as little more than vermin by the other races and only live [[WeAreAsMayflies until the age of 20]].
** ''VideoGame/MassEffect3'' introduces a WalkingSpoiler one [[spoiler:in the form of the Leviathans. They consider themselves to be the "Apex of organic evolution" in their own words and are the closest thing the setting has to a genuine organic EldritchAbomination. Given that they conquered the entire galaxy in their heyday, their {{pride}} is not entirely unjustified. It is a little undermined though by the fact that a creation of theirs [[TurnedAgainstTheirMasters Turned Against Its Masters]] and built the first Reapers out of them.]]
* Psaro's RoaringRampageOfRevenge against [[HumansAreTheRealMonsters humanity]] in ''VideoGame/DragonQuestIV'' leads him to seek the "Secret of Evolution," which allows him to achieve a monstrous OneWingedAngel form with which he intends to exact his revenge against the world. [[spoiler:In the [=PS1=] and DS remakes, it's revealed that one of his own henchmen manipulated him so that he could obtain the Secret of Evolution himself.]]
* The French version of ''VideoGame/FinalFantasyX'' calls the Nemesis BonusBoss "Supreme Being."
* Krystalak from ''VideoGame/GodzillaUnleashed'' wants to become this by absorbing all of the power the crystals are giving off. Also applies to your monster if you collect all seven of the crystal Power Surge abilities, their powers make your monster the ultimate being on Earth and you prove it by defeating six-to-eight opponents in the appropriately-named "Tyrant" final stage.
%%* Each BigBad in the ''VideoGame/HouseOfTheDead'' series ([[TarotMotifs The Magician, The Emperor, The Wheel of Fate, and The World]]), was wrongly supposed to be this by its creator.
* This is the general goal of the creature stage of ''VideoGame/{{Spore}}''. There's even an achievement for it, called [[http://spore.wikia.com/wiki/Max_Power Max Power.]]
* Gandrake in ''VideoGame/MusashiSamuraiLegend'' considers himself to be the "Ultimate Form of Life" as [[spoiler:he uses the powers of Amestris, [[TheManBehindTheMan the Stone Behind the Man]] and GreaterScopeVillain, to gain a OneWingedAngel form]].
* The monster known as Atma/Ultimate Weapon/Ultima, from ''VideoGame/FinalFantasyVI'' boasts that it is the ultimate life form in all of its pre-battle speeches. In ''VideoGame/FinalFantasyIVTheAfterYears'', Ultimate Weapon is brought back as one of the bonus super bosses in the last dungeon. In this incarnation, it very much [[ThatOneBoss lives up to its boasts]], as, with its ridiculously god-like stats, almost all of its attacks are [[OneHitKill OHKOs]], [[NoKillLikeOverkill in addition to its One-Hit Kill attack!]]
* The Franchise/{{Nasuverse}} features this in the form of the Ultimate Ones: they are an example of the most perfect lifeform that ever evolved on the planet, which then inherits the planet's will, spirit, and power. To say they all won the SuperpowerLottery would be putting it lightly: in the hierarchy of the ''Nasuverse'', their sheer power ranks even above gods. In fact, some material suggests that they may be impossible to truly kill, as ''the concept of death may not apply to them''. For a specific example, see Crimson Moon Brunestud, the Ultimate One of the Moon. It is effectively immortal and won the SuperpowerLottery so hard it's not even funny ([[MagicalEye Mystic Eyes of the Noble Color Rainbow]] that can "crush reality," a GameBreaker Knight Arm and tons of other overpowered abilities). Unfortunately, in-universe MemeticBadass Zelretch came along and '''dropped the moon on him'''. [[spoiler:Crimson Moon, however, is still around in some form even after its physical body was annihilated, and is merely awaiting its reincarnation.]]
* [[spoiler:The Brethren Moons]] in ''VideoGame/DeadSpace3''. These massive [[spoiler:moon-sized]] creatures are the ultimate Necromorphs and live only to consume all organic life in the universe. [[spoiler:The Markers]] are the tools they use to manipulate entire races into offering themselves up as a buffet.
* Played with in ''VideoGame/StarCraft''. The Protoss are said to have "Purity of Form" while the Zerg have "Purity of Essence." The Zerg Overmind (and apparently the Xel'naga) believed that combining the two would result in this trope. However, in ''VideoGame/StarCraftIIHeartOfTheSwarm'', the Zerg in charge of mutations and evolution, Abathur, dismisses the idea as an impossibility. Abathur states instead that "perfection" is an ever-changing, fluid concept which can be chased but never attained, and depends on the situation and circumstances.
* ''VideoGame/LeagueOfLegends'' has Kha'Zix, a creature from the Void whose goal in life is to attain this state by killing and consuming his arch-nemesis, Rengar. In-game, if they're on opposite teams, Kha'Zix can get a sidequest to do precisely that and gain a fourth evolution point.
* In the final battle of ''VideoGame/ViewtifulJoe: Double Trouble!'', Queen Heinderella of the villainous syndicate Madow uses the "hero-ness" (the essence of justice and virtue within all do-gooders) of the game's bosses and Joe himself to transform, whereupon she's [[BossSubtitles given the title of]] "Ultimate Super Being."
* ''VideoGame/FireEmblemEchoesShadowsOfValentia'' drops TheReveal that [[spoiler:[[VideoGame/FireEmblemAwakening the Fell Dragon, Grima]] was originally created by the [[AlchemyIsMagic alchemist Forneus]] in order to create the "perfect life form" after his experiments in [[BackFromTheDead raising the dead for obedient soldiers]] produced what would become a ZombieApocalypse called the Risen. Considering the end-result was a {{Kaiju}} dragon that could only be killed by its own power, [[GoneHorriblyRight one could say he succeeded]]]].
* The ''VideoGame/ParasiteEve'' series:
** In the first game, the titular villain Eve seeks to give birth to the Ultimate Being. [[spoiler: She does, but the heroine, Aya Brea, kills him in a naval carrier explosion. The Ultimate Being exhibits the trait of rapid evolution, quickly maturing as he battles Aya aboard the carrier.]]
** In ''VideoGame/ParasiteEve2'', the bad guys want to create their own Ultimate Being. [[spoiler: Eve, a young clone of Aya, is key to their experiments.]]

[[folder:Web Comics]]
* ''Webcomic/CommanderKitty''. Zenith [[http://www.commanderkitty.com/2010/07/04/nothing-like-a-good-rant/ thinks she's this,]] [[spoiler:[[http://www.commanderkitty.com/2010/12/05/dont-wait-up/ but she's actually an android.]]]]
* In ''Webcomic/TheDragonDoctors'', such a thing exists as an infectious, infinitely-adaptable fungal parasite called the Crax that consumes you from within and turns you into a nearly-invincible monster. The entire species is collectively one Crax, as it has a hive-mind, and it turns out that it used to be a human being named Preston Chang who turned himself into the thing so he could live forever by ''eating everything.'' He's thwarted in the SpiritWorld, but attacks Kili mentally again in a later chapter called "The Ultimate Life Form." [[spoiler:It eventually turns out that the real Crax has evolved in response to the spiritual attack by getting rid of its weakness--the spirit of Preston Chang himself. He's dead, just a ghost haunting Kili, and when she realizes this she crushes him easily, after he had spent the entire chapter recounting all the horrible things that have happened to her in order to break her will. The doctors mention that the ultimate life form is not the ultimate ''eating machine'', but the ultimate ''survivor''. Since the chapter established that Kili has survived being touched by Death itself and multiple catastrophes, that implies ''she's'' the titular Ultimate Lifeform.]]
* ''WebComic/SaturdayMorningBreakfastCereal''
** In [[https://smbc-comics.com/index.php?id=3826 "A Beautiful Mind"]], a CrazyCatLady crossed with MadScientist creates the ultimate being by packing enough cats into a small enough space, forming a superintelligent neural network. Unfortunately, it still has some cat weaknesses...
** In [[https://www.smbc-comics.com/?id=3403#comic strip 3403]], an alien lands on Earth and asks to talk to the wisest species on Earth. [[HumansAreBastards Humans won't do]], but neither will dolphins or other "even dumber animals". It turns out he's talking about the mega-brain that lives at the centre of the Earth.

[[folder:Web Original]]
* [[http://scp-wiki.wikidot.com/scp-682 SCP-682]] of ''Wiki/SCPFoundation'' fame arguably fits this by virtue of being able to survive ''[[AdaptiveAbility anything]]''. If there is something that can permanently kill the beast, the Foundation hasn't found it yet or is too afraid to try it. The "arguably" part is due to the possibility that 682 may not technically be ''alive'' as humans understand it. One researcher in the termination log referred to it as an "unliving, undying intelligent monster".
* In WebAnimation/NazoUnleashed, the titular villain Nazo declares himself to be the Ultimate ''Being'', in contrast to Shadow being the UltimateLifeForm.
* ''WebAnimation/{{Dreamscape}}'': The Possessor Ghost is the strongest creature Melinda created and her final strike against the world.
** Kaila claims to be the strongest of all the Master of the Dammed's creations.

[[folder:Western Animation]]
%%* ''WesternAnimation/{{Superjail}}'': Combaticus fits into this trope very easily.
* ''WesternAnimation/Ben10AlienForce'': Highbreed consider themselves above all other species. Although they are apparently smarter and obviously MUCH stronger than almost all other life forms, that's not the reason for their FantasticRacism. [[spoiler:For all their power, the process of ''reproduction'' is something they're losing the ability to do.]]
* ''WesternAnimation/Ben10UltimateAlien'',
** Ben can now evolve his aliens to their final stage in their evolutionary form. WordOfGod stating that it is a simulated result of each alien being taken to a worst case scenario and the final result of millions of years in that scenario.
** Aggregor's goal was to become the Ultimate Life Form by absorbing an infant RealityWarper known as a Celestialsapien, giving him the seemingly limitless power of Alien-X but (as the infant's minds hadn't developed yet) without the crippling weakness of needing to negotiate with the Celestialsapien's two other minds to do anything.
* An episode of ''WesternAnimation/{{Animaniacs}}'' features the ultimate life form, known only as Toe (yes, he's a giant toe), who claims that, in a million years, they will look just like him. Truly, Toe has no apparent weaknesses except that he always needs someone to do his cuticles.
* ''WesternAnimation/ProjectGeeker'': Project GKR was meant to be one. It doesn't quite take: he's stolen before his final mental programming can be completed, and what we get is Geeker - an idiot with PowerIncontinence.
* ''WesternAnimation/TheVentureBrothers'': In the PreviouslyOn segment of "Escape to the House of Mummies Pt II", the Cult of Osiris creates "The Perfect Man", though it's clear from the start he's not perfect, as he is completely lacking in mental development.
* In ''WesternAnimation/StevenUniverse'':
** Steven and Connie's [[FusionDance fusion]] Stevonnie is described as being perfect by Garnet, because as far as fusions go, their components are so in sync that they can fuse with zero effort (and in fact have fused out of pure joy at being together both times), which also reflects in them being the one fusion that is completely indistinguishable from a non-fusion.
** The Diamond Authority, the rulers of the Gem species, are [[CultOfPersonality at least perceived]] as perfect lifeforms by their followers. Peridot describes them as having no weakness, and being completely flawless beings.
** Gems are all designed and [[BizarreAlienReproduction grown from the ground]] [[FantasticCasteSystem for specific purposes]], and Peridot is trained to analyze a great deal of information on a Gem by examining the hole they emerged from. Upon examining the hole [[spoiler:Jasper]] was born in, she finds it's the most perfect hole she'd ever seen, and concludes that this makes her "The Ultimate [[spoiler:Quartz]]". In terms of physical ability, this ''more'' than shows: [[spoiler:despite being a standard shock troop, Jasper is stronger than a Topaz and ''way'' stronger than any other Quartz thus far shown. It takes Garnet to match her one on one, and even then Garnet had to out-think her, while in the Gem War Garnet and Bismuth alone were sufficient to defeat entire platoons of standard Quartz Gems. Jasper has also taken more abuse than any other Gem in the entire series without poofing, and in fact is only poofed after being corrupted into a weaker Gem Monster.]]

[[folder:Real Life]]
* Cockroaches. Or so popular culture would like you to believe. Just for an example, compare the [[http://en.wikipedia.org/wiki/Cockroach#Hardiness hardiness of cockroaches]], to [[http://knol.google.com/k/scorpions-what-is-truth-and-what-is-wrong#Some_interesting_records_and_data that of scorpions]]. Both pale in comparison to tardigrades (mentioned below).
* UsefulNotes/TheFrenchRevolution replaced God with a "[[http://en.wikipedia.org/wiki/Cult_of_the_Supreme_Being Supreme Being]]".
* Tardigrades, also known as "Water Bears", are notorious for being able to survive extreme conditions. To elaborate, they can withstand low temperatures close to absolute zero, high temperatures at 151 degrees celsius, and radiation (even more so than cockroaches), and can even survive for up to ten days in the vacuum of space. Even though every currently existing species has adapted the ability to survive in its surroundings, tardigrades survive in these conditions that go well beyond them (Although most in part thanks to [[http://en.wikipedia.org/wiki/Cryptobiosis cryptobiosis]]).
* Apparently, jellyfishes of the species ''Turritopsis nutricula'' are biologically immortal; although they can die of disease or being eaten, they are able to thwart dying of natural causes by periodically returning to the infant polyp stage. Theoretically, there could be ''T. nutricula'' in the oceans that have lived there since the species first evolved.
* The [[http://en.wikipedia.org/wiki/Vitruvian_Man Vitruvian Man]] by Creator/LeonardoDaVinci is thought of as a perfectly ''proportionate'' human body, so it's a "perfect human" in one way.
* Bacteria have been observed to survive dormant [[http://en.wikipedia.org/wiki/Surveyor_3#Apollo_12_and_the_remote_possibility_of_interplanetary_contamination on the surface of the moon]] for over two years.
* One Creator/DiscoveryChannel program about dinosaurs had a paleontologist point out that even the biggest, strongest, fastest, healthiest ''TyrannosaurusRex'' of all time would still be rated as a complete failure, by evolutionary standards, if it never managed to pass on its genes to another generation of ''T. rex'' babies. Evolution doesn't care about physical traits or abilities because only reproductive success matters to it. In other words, it would consider the ultimate lifeform to be the one most capable of reproducing.
** If that's the definition, the ultimate life form is probably the mitochondrion. Once an independent organism, it became embedded in a larger cell. That cell went on to be the ancestor of all plants and animals, there are easily more mitochondria in the world today than there are animal and plant cells, and there will be mitochondria as long as there are animals or plants.
* As animals have lived in the ocean much longer than they have on land, and as the ocean is less susceptible to environmental change than land, many species of animals in the ocean have remained more or less the same for very long times, even by evolutionary standards. These species have effectively reached a 'practical pinnacle' of evolution, where any deviation from the usual is almost guaranteed to be a step backwards in terms of the species reproducibility. This highlights the reality of any "perfect" organism, that it is only perfect within its niche.
** The Horseshoe Crab is an excellent macroscopic example of such living fossils; having remained mostly unchanged for the last 200 million years. Unfortunately it seems that they've finally met their match in Humans, who catch them for use in medical experiments, animal feed, and rather cruel-looking specialty recipes. Those, coupled with pollution and habitat destruction, horsecrab populations are declining.
** Sharks are another prominent example, not changing much in millions of years.
** While most prominent in sea life for the above reasons, it is not restricted to them. The concept of an 'Evolutionary Landscape' exists, with the idea that hills on this landscape represent a particular niche for a species to occupy, and that the peaks of these hills are a theoretical ideal form for that niche that a species may eventually evolve into, and from which they are likely to never evolve away from provided the environment doesn't change. However, as the evolution of other species is part of what effects the environment, it would take a great deal of time for land creatures to reach a state of equilibrium, even if the environment wasn't also subject to geographical changes that have nothing to do with biology, such as floods. This propensity for significant rapid change in environment on the land means that even if an animal does reach an evolutionary peak, [[MovingTheGoalposts they'll likely find it 'moved' somewhere else in a relatively short period of time]].
** Octopodes and other cephalopods. They're the closest thing to a shapeshifter we get in nature, able to change shape, skin texture, and color almost instantly to hide anywhere. They're insanely flexible, unusually intelligent for invertebrates, multi-limbed with CombatTentacles, have underwater jet propulsion, and can disappear in a cloud of ink. If land octopodes weren't impossible (their soft bodies can't be supported out of water and they'd dry up pretty quickly) and didn't only live to be about two years old, octopodes would likely be competing with humans for the position of Earth's dominant life form.
* The Ginkgo tree is another living fossil that can be thought of as almost an Ultimate Life Form, in that it is hardy in a wide variety of climates, from cold mountains (the last wild population was from Tibet), has no insect pests, is virtually immune to most known plant diseases, and is extremely tolerant of air pollution. The Ginkgo's only problems as an Ultimate Life Form are that it has (compared to the flowering plants) a rather inefficient method of reproduction (in that male trees use the wind to send pollen to the female trees' exposed unfertilized ovaries), an extremely slow growth rate (a Ginkgo needs to be at least twenty years old before it will display sexual characteristics), and mildly toxic seeds that are protected by an apricot-like covering that has an abominable odor (depending on how ripe and which strain, the "fruit" can smell like stinky markers, or cat vomit) that are only attractive to brave squirrels.
* This article would not be complete without mention of the perfect predator. A lot of people don't realize that the human race has survived because we, while not the strongest, are cunning, extremely adaptable, fairly stealthy if we focus, and intelligent enough to build weapons such as guns or explosives. Look at the damage we have done. The things we kill are stronger, faster, more violent than us. The fact that you sitting at your computer can be that perfect predator, is quite frankly awesome to think about.
* Matrioshka brains: these are hypothetical structures that combine the idea with a DysonSphere with computronium (the theoretical configuration of matter offering the most bang-for-bucks computing wise) Matrioshka brains would consequently be the most powerful computer technically possible - and as a result it has been suggested that they might be the dominant lifeform in the universe.
* Eventually the universe will either dissolve into entropy or collapse in a reverse of the Big Bang, so the last specimen of life in the universe before conditions render life impossible will technically be the ultimate life form ("ultimate" also means "final").