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[[caption-width-right:350:But that's an octopus!]]

->''...Just so you understand exactly what it is you're dealing with: besides its eight huge tentacles, this thing has two whips. Each one is probably as long as this room and three or four feet thick. Those whips are covered with suction cups as big as this notepad. In the center of each cup is a claw as big as my fist and razor-sharp. The squid grabs and impales its prey with those whips and drags it towards its beak, shredding the flesh as it goes, and these things can shred a one-hundred-pound tuna in five seconds. Its beak is like an eagle's, only it's about fifty times bigger and can bite through steel. Now, you make a mistake trying to kill this thing, and it gets you first...you pray to God those whips kill you before you get to that beak.''
-->-- '''Whip Dalton''', ''Film/TheBeast''

Aside from being a plentiful source of low grade calamari [[note]] ''Extremely'' low-grade. They use ammonia to help them stay afloat, and ammonia is ''definitely'' not good eats. (Unless, of course, you are a Finn and like ''salmiakki''.) [[/note]], Giant Squid are just as appetizingly useful for their role as {{Sea Monster}}s roaming the deep, attacking boats full of ''Film/CutthroatIsland'' extras and being an all round menace to the high seas.

As a real life species, giant squid are believed to have inspired Norse tales of the Kraken and as one of TheOldestOnesInTheBook had a lot of overlap with the epic KrakenAndLeviathan. After Jules Vernes's ''Literature/TwentyThousandLeaguesUnderTheSea'', the Giant Squid became a much more of a monster in the vein of any other "Gigantic Animal" monster: much more explicitly a larger version of something already known, scientifically unstudied but explanable and belonging to a realm not yet fully discovered, in this case, the depths of the sea.

Being mostly tentacle, the Giant Squid has a variety of ways in which it may be depicted on screen. You might see [[AttackOfTheMonsterAppendage only the tentacles]], perhaps the top of the head occasionally peaks out of the water. A full body shot may be a climatic reveal and seeing the beaked mouth may be reserved for the death scene of some poor sucker being slowly dragged into it. Very often the tentacles almost seem to act as their own monster following the principle of only taking what is on screen as being real.

Authors, designers and illustrators not always being sticklers for accuracy, the trope GiantSquid includes giant octopuses and giant-sea-creatures-that-are-some-weird-hybrid-of-squids-and-octopuses, as well.

Subtrope of SeaMonster, see also GiantEnemyCrab and EverythingsSquishierWithCephalopods.


[[folder:Comic Books]]
* ''ComicBook/ThePunisher'': One arc centered around the sole survivor of one of Frank's raids. The guy had taken a bullet in the head a few years before and was never the same afterwards, having developed an obsession with GiantSquid (sorry, Architeuthis) and spending his free time scuba-diving the waters of NewYorkCity looking for one (yes, in the actual harbor. Even the other mafiosi know nothing about marine biology and can see the flaw in his reasoning). He's haunted by the ghosts of his fellow criminals who demand he avenge them, and very nearly manages it by luring Frank into a warehouse gunfight and blowing it up. He holds Frank at gunpoint on the docks and would have killed him... if it wasn't for an actual GiantSquid grabbing and eating him.

[[folder:Films -- Animation]]
* The sequel to Disney's ''Disney/PeterPan'' replaced the tick-tocking crocodile with a giant orange octopus which made popping noises with his tentacles.
* In ''WesternAnimation/FindingDory'' (the sequel to ''WesternAnimation/FindingNemo''), Dory, Marlin and Nemo have a brief encounter with a giant squid hiding in a shipwreck.
* In ''WesternAnimation/RugratsGoWild'', Angelica attempts to scare the babies into thinking a giant squid might eat them, though Susie says otherwise. [[spoiler:An actual giant squid appears later on, though unlike most examples it turns out to be a GentleGiant ([[ShownTheirWork just like the real animal]]).]]

[[folder:Films -- Live Action]]
* The Kraken from ''Franchise/PiratesOfTheCaribbean''. Though far bigger than any real squid (thereby really earning its Kraken title).
* ''Film/MegaSharkVsGiantOctopus'' Changing it to an Octopus was the closest to originality the film got.
* ''Wake of the Red Witch'', a black-and-white movie based on the novel "Toilers of the Sea", featured John Wayne wrestling with and killing a giant octopus that had carried off a native diver minutes before.
* ''Reap the Wild Wind'' featured John Wayne fighting and being killed by a rather silly-looking (but technologically impressive for the time) giant squid. It was made several years after the above movie. Perhaps the squid was avenging its cephalopod brother?
* Roger Corman's first film was ''Monster from the Ocean Floor'', and featured a female marine biologist vindictively hunting a giant squid.
* ''Beneath the 12 Mile Reef'' has a giant human attacking octopus
* ''Mysterious Island'' and ''Film/ItCameFromBeneathTheSea'' were both Creator/RayHarryhausen animated movies with giant killer cephalopods in them. In ''It Came from Beneath the Sea'', it is a giant radioactive octopus and features as the main threat. ''Mysterious Island'' meanwhile feature what appeared to be either a giant nautilus or ammonite which attacks the castaways when they're exploring the sunken pirate ship.
* ''Film/VoyageToTheBottomOfTheSea'' has a gigantic octopus in it which attacks the ''Seaview''. Also, an actual giant squid earlier attacked the divers repairing the transatlantic phone line on the ocean bottom.
* What are initially believed to be numerous worm-like creatures in ''Film/DeepRising'' that infested the ship and consumed the entire crew and its passengers actually turn out to be the tentacles of an extremely large squid-like monster at the end.
%%* Boga Ten in ''Film/RoadToBali''.
* In ''Film/TheLordOfTheRings'' films, the Watcher in the Water was decidedly squid-like, with bits of octopus thrown in for good measure. In the books the description is a bit more vague but still retains most of the Giant Squid properties.
* The Walt Disney version of ''Film/TwentyThousandLeaguesUnderTheSea'' prominently featured a giant squid that Kirk Douglas went against mano a mano (a mano, a mano, a mano...) with a harpoon.
* Italian movie ''Tentacoli'' features a giant octopus that was stirred up by an underwater tunneling project, and developed a taste for humans.
* In Film/HighSpirits, a haunted mural in the hotel becomes animated, and a giant squid appears to torment the guests. The child actor in the scene even says, verbatim: 'It's a giant squid!' before being snatched by the creature.
* The 2000 film ''Octopus'' features a submarine facing off with a gigantic, mutated octopus deep under the ocean. The sequel, ''Octopus 2: River of Fear'', has the NYPD having to deal with a equally gigantic octopus that has made its home in New York Harbor.
* Gezora from the 1970 Toho film, ''Film/SpaceAmoeba'', although he's technically a cuttlefish {{Kaiju}}. He's also tussled with Godzilla in some comics and video games despite never appearing in any movies with him.
** ''Film/KingKongVsGodzilla'', ''Film/WarOfTheGargantuas'', and ''Film/FrankensteinConquersTheWorld'' all featured a giant octopus fight King Kong, Gaira, and Frankenstein respectively.
* Dianoga in ''Film/ANewHope'' is definitely this. Some people InUniverse even call it "Trash Giant Squid".
* A giant octopus is one of the creatures that the crew faces in the eponymoues ''Film/TheLostContinent''.

* To be elaborate on ''Literature/TwentyThousandLeaguesUnderTheSea'', the crew of the ''Nautilus'' (and Ned Land) fight a school of giant squids after one squid wraps itself around the submarine and stops it in its tracks. It is the most recognizable element in the story--after Nemo and the ''Nautilus'' themselves--and is a standard fixture in any adaptation. It should be noted, however: some translations are a bit more ambiguous about the monsters' exact species, instead referring to them as "poulp" (an archaic term for "octopus").
* The Watcher of the Water which guards the gates of Moria in Creator/JRRTolkien's ''Literature/TheLordOfTheRings''.
* Seen as the cover morph in ''The Exposed'', the twenty-seventh book in the ''Literature/{{Animorphs}}'' series. Rachel's shown as the morpher, but the whole team morphs squids in the book, having first morphed sperm whales to find the titular exposed Pemalite ship and the squids to reach the ship.
* The giant squid from ''Literature/HarryPotter'' is a rare benevolent example. Living in the lake near Hogwarts, this giant squid is a friendly docile creature who likes to play with the students, since Fred and George were seen tickling its tentacles, accepts food from them and even saved one first year student who fell into the water. Writer J.K. Rowling joked that this particular giant squid is actually the [[{{Animorphism}} Animagus form]] of Godric Gryffindor, one of the legendary founders of Hogwarts, still watching over Hogwarts to this day.
* Creator/MichaelCrichton's posthumously published ''Literature/PirateLatitudes'' features two encounters with what is presumably a giant squid, which the characters call a "Kraken". The first one doesn't do much and is quickly forgotten. The second one is strangely aggressive, grabbing crew members and flinging them overboard. It also, for some reason, has bioluminescence.
** Another Chricton novel, ''Literature/{{Sphere}}'', also features a giant squid as a manifestation of a character's mind.
* The narrator of ''Literature/MobyDick'' has an encounter with a giant squid:
-->''Almost forgetting for the moment all thoughts of Moby Dick, we now gazed at the most wondrous phenomenon which the secret seas have hitherto revealed to mankind. A vast pulpy mass, furlongs in length and breadth, of a glancing cream-color, lay floating on the water, innumerable long arms radiating from its centre, and curling and twisting like a nest of anacondas, as if blindly to clutch at any hapless object within reach. No perceptible face or front did it have; no conceivable token of either sensation or instinct; but undulated there on the billows, an unearthly, formless, chance-like apparition of life.''
-->''As with a low sucking sound it slowly disappeared again, Starbuck still gazing at the agitated waters where it had sunk, with a wild voice exclaimed -- "Almost rather had I seen Moby Dick and fought him, than to have seen thee, thou white ghost!"''
* Creator/PeterBenchley's ''Literature/{{Beast}}'', later adapted into a film starring William Peterson called ''Film/TheBeast'', could roughly be described as ''Film/{{Jaws}}'' with a Giant Squid (especially since Benchley wrote ''Literature/{{Jaws}}'') with the giant squid attacking boats after foolish mankind overfished its normal prey and accidentally killed its young. Mankind's hubris concerning nature leads to him getting attacked by a wild creature? Naaaawh!
* Literature/ArtemisFowl is attacked by a giant squid in ''The Atlantis Complex''.
* In the seventh ''Literature/JamesBond'' novel - ''Literature/DrNo'' - the title character puts him through a torture labyrinth ending with an apparent escape only to be attacked by a giant squid. Improbably, Bond wins.
* In one story of ''Literature/PrinceValiant'', the epynomous hero is trapped above a large, deep pool with an enourmous octopus at the bottom trying to reach him. In another story, he is at sea with a small crew in a boat and is attacked by a giant squid.
* In Pat Murphy's ''Adventures In Space And Time with Max Merriwell'', [[spoiler: Weldon Merrimax is killed]] by a giant squid.
* In Creator/ArthurCClarke's ''Ghost of the Grand Banks'', deep-sea diver Jason Bradley became world famous after he was hired to investigate an oil-rig dive crewman's report that a 100-meter octopus had taken up occupancy among the rig's seabed buttresses. [[spoiler: The gargantuan octopus fled immediately when Bradley approached in his lighted hardshell diving suit.]]
* ''Literature/{{Kraken}}'' kicks off with the impossible theft of the preserved giant squid on display in London's Natural History Museum (nicknamed [[http://www.atlasobscura.com/places/archie-giant-squid Archie]]). Turns out there is a cult that worships giant squids as gods and offspring of the almighty Kraken, and by the novel's internal logic, the fact that the squid commands such faith means that ''is'' actually an extremely powerful entity, even in death.
* In ''Literature/StarlightAndShadows'', the pirate ship ''Elfmaid'' is attacked by a giant squid, which protagonists Liriel and Fyodor manage to slay.
* ''Literature/TalesFromTheWhiteHart'': "Big Game Hunt" describes the efforts of an eccentric professor to study the electrical circuitry of the brain. After using his research to develop robotic creatures, he then tries to use electrical stimulation of the brain to control the behavior of animals. The professor's work is discovered by a wildlife photographer, who tries to exploit it to film a giant squid. While their attempt is initially successful, the equipment blows a fuse, and the squid kills both scientist and photographer.

[[folder:Live Action TV]]
* A [[UpToEleven really, really]] Giant Squid is worshiped as a god on a planet where the Doctor and Romana seek the Key to Time in the ''Series/DoctorWho'' serial ''The Power of Kroll''.
* One episode of ''TheSeanCullenShow'' had a giant squid take over Sean's basement. It eventually kidnapped William Shatner and fell through a wormhole. Sean sang about it.
* One of these attacks the research vessel Alton is cooking on in the squid episode of ''Series/GoodEats.''

[[folder:Multiple Media]]
* Kalmah from ''Toys/{{Bionicle}}'' commanded an army of giant squids while he lived in the Pit. Ever since he got turned back into an air-breather, they probably don't follow him anymore.

* The Music/JonathanCoulton song "I Crush Everything" is sung from the perspective of a giant squid. It suffers from extreme loneliness, because (as the title hints) it can't touch anything without dragging it down to the bottom of the sea and destroying it. And it ''really'' hates dolphins. So, ''sad'' cephalopod.
* Alestorm's "[[http://www.youtube.com/watch?v=3TKyNTwD3Yk Death Throes of the Terrorsquid]]" is a song about... [[ExactlyWhatItSaysOnTheTin Pirates killing the terrorsquid.]]
* The Dreadnoughts' "Mary the One-Eyed Prostitute, Who Fought the Colossal Squid and Saved Us From Certain Death on the High Seas, God Rest Her One-Eyed Soul" is pretty Administrivia/SelfExplanatory.

[[folder:Newspaper Comics]]
* Occasionally showed up on ''ComicStrip/TheFarSide'', usually in the role of the traditional household pet. Somehow, they never seemed to need water.

* In ''VideoGame/ProPinballFantasticJourney'', the player must fight off a Giant Octopus as part of the Submarine Adventure.
* ''Pinball/PiratesOfTheCaribbean'' has the Kraken, which must be killed as part of the game.

* In 2005 the UK Independence Party or UKIP, a Euro Sceptic party, [[ScareCampaign decided to portray]] the EU as a Giant Blue Octopus [[{{Kaiju}} attacking London]] with CombatTentacles in [[http://www.youtube.com/watch?v=UgfQwhKkVR8 this]] Party Political Broadcast.

[[folder:Tabletop Games]]
* The ''TabletopGame/NewWorldOfDarkness'' has the [[KrakenAndLeviathan Leviathan]], the Kerberos of the Sea of Fragments. It's actually only a guess that it's a cephalopod based on the fact that it has tentacles -- it's too huge for anyone to ever see what it really looks like.
* ''TabletopGame/DystopianWars'' takes this up to eleven - the Empire of the Blazing Sun have the Ika class Mechanical Squid - a gigantic robotic squid large enough to grab and drag down the largest warships into the briny depths.
* One of the largest squid-like entities in the game ''TabletopGame/{{Rifts}}'' is the Lord of the Deep. Nobody knows if it really is squidlike, as only its tentacles are ever seen - its body is deep within the Mariana Trench. Said tentacles are several MILES long, and thick enough to pose a threat even to the ultratech battleships of rifts Earth.
* ''TabletopGame/DungeonsAndDragons'' has intelligent, evil Kraken. There's also stats for a perfectly mundane giant squid and giant octopus.
* ''TabletopGame/{{Munchkin}}'' has Squidzilla as one of its monsters. As the name implies, it is huge.
* ''TabletopGame/HollowEarthExpedition''. Kraken are 100 foot long 40 ton squids powerful enough to capsize ships and eat their crews. They can also drag a ship deep underwater and let the pressure and lack of air do their dirty work for them.
* ''It Came from the Late, Late Show''. A Giant Octopus Monster is 60 feet long. Its rampages include eating sunbathers and surfers and destroying coastal towns and bridges.
* ''TabletopGame/Warhammer40000'' sees your giant squid and raises you the Void Krakens, a species of space dwelling asteroid eaters that are in the same weight class as small warship. Keep in mind, 40k warships start at 1km and only go up from there.

[[folder:Theme Parks]]
* In ''Ride/PopeyeAndBlutosBilgeRatBarges'' at [[Ride/UniversalStudios Universal's Islands of Adventure]], the guests have a run-in with giant octopus when their raft enters a dark cave.

[[folder:Video Games]]
* One of ''VideoGame/EccoTheDolphin'''s more random enemies are giant [[strike:octopodes]] [[CallARabbitASmeerp Eight-Arms]]. There's plenty of pointy ammonites in {{Prehistoria}}, too.
* ''{{VideoGame/Conan}}'' has a boss battle against one of these.
* One of the optional ship battles in ''VideoGame/SkiesOfArcadia'' is against a giant flying squid.
* In ''VideoGame/CommandAndConquerRedAlert2'' the [[DirtyCommunists Wacky Soviets]] have ''giant squid that can drag enemy ships down to the briny depths''. Too bad they traded those in for war bears in [[VideoGame/CommandAndConquerRedAlert3 the third game]].
* One of the bosses in ''VideoGame/{{Resistance}} 2'' is a huge, many-tentacled Kraken.
* The giant pink squid thingy Krusher from ''VideoGame/Sly3HonorAmongThieves'' starts off as a boss fight before the Guru manages to talk it into temporarily joining you. You later control Crusher to defend Bentley by smashing pirates in a fashion in a scene that is best described as "Giant Squid Bongo with a Body Count".
* One of the recurring enemies in ''VideoGame/SuperMarioSunshine'' is the Gooper Blooper, a giant land squid that sprays toxic ink around itself. It later makes an appearance as a boss in ''VideoGame/PaperMarioStickerStar'', where it seems to have gotten into music.
** The Mega Blooper in ''VideoGame/PaperMario'' is a supersized variant of the standard Blooper. The [[VideoGame/PaperMarioTheThousandYearDoor sequel]] has a similarly sized Blooper as the first real boss in the game, but lacks any manner of adjective on its name.
* The final BonusBoss of ''[[VideoGame/NavalOps Warship Gunner 2]]'' is a giant squid that can sink ships with a blast of high-pressure ink or lasers. But it's a giant, flattened and dried squid.
* The ''VideoGame/EndlessOcean'' games both feature giant squid in their respective abyssal zones, the second of whom will periodically tangle with a sperm whale, including during the storyline. The second game also has the giant squid's baby, Kraken Jr., who's only a couple of feet long and [[UglyCute amazingly adorable]] for a squid.
* The ''VideoGame/WorldOfWarcraft'' expansion ''Cataclysm'' has Ozumat, a creature working for the [[EldritchAbomination Old Gods]] and able to take on a PhysicalGod.
* Dr Peculiar defends himself with a giant mutant octopus in ''VideoGame/TheDeadlyTowerOfMonsters.''
* Story mission nine in ''VideoGame/JawsUnleashed'' opens with a fight against one.
* Even though it looks more like an octopus, Lusca from ''VideoGame/CityOfHeroes'' probably counts. There's no way to gauge how big it is, since you can't see the whole thing, but the amount of tentacle that you can see looks to be around 30 feet or more.
* ''Franchise/TheLegendOfZelda'':
** The Big Octo miniboss from ''VideoGame/TheLegendOfZeldaOcarinaOfTime'' and ''VideoGame/TheLegendOfZeldaMajorasMask'' is a land-based variant.
** The Big Octo from ''VideoGame/TheLegendOfZeldaTheWindWaker''. By ''GOD'', the Big Octo. Basically to sum it up, it's a giant squid that is always preceded by a large flock of seagulls, and will try to suck in your boat if you go near said seagulls, at which point you must attack several places on its body with your boomerang.
** The Big Octorok from ''VideoGame/TheLegendOfZeldaTheMinishCap'' is technically the same size as the small Octoroks you fight in the overworld, but it becomes this from Link's perspective after he is shrunk to Minish size.
** While the incident happened in the past and isn't portrayed onscreen, ''VideoGame/TheLegendOfZeldaBreathOfTheWild'' has a stone tablet that describes how [[WarriorPrince Prince Sidon]] killed a giant Octorok that was terrorizing Hylian fishers.
* One level of ''VideoGame/ZackAndWikiQuestForBarbarosTreasure'' revolves around taking one down.
* In ''VideoGame/AssassinsCreedII'' Ezio goes searching for the Assassin Seals that unlock the Armor of Altair, he can come across what appears to be a giant squid twice in the same area. Once he pulls on a lever and watches the water, he can see the dark figure swim past menacingly. If he pulls the lever again and waits, the squid will use a tentacle to attack Ezio and fail. If Ezio falls into the water at any moment, however, the squid will not come to attack him at all.
* In ''VideoGame/BioShock1'' and ''VideoGame/BioShock2'', a Giant Squid can be seen swimming through Rapture.
* In ''VideoGame/CryptOfTheNecrodancer'', the boss [[HurricaneOfPuns Coral Riff]] is a giant squid with a guitar's body for a head.
* The as-of-yet unimplemented Crabsquid in VideoGame/{{Subnautica}}, which isnít that big in comparison to some of the other creatures, but still big in comparison to you.
* The ''VideoGame/{{Shantae}}'' series has the Squid Baron, [[BossSubtitles Reoccurring Rascal/Concerned Parent]]. Despite his name, he looks more like a giant octopus than a giant squid. He may not be large enough to drag down a ship, but he's still roughly twice the size of an average human.
* In ''VideoGame/{{Splatoon}},'' Inklings are humanoid creatures who can morph into roughly human-sized squids. However, the "Kraken" special ability allows an Inkling to temporarily become a massive and virtually indestructible squid capable of destroying all it touches.
* In ''VideoGames/KidPixStudio'', there was a "Moopie" stamp of a blue squid. Although quite small normally, as with all stamps, it could be enlarged by pressing the control key, and further enlarged by pressing the shift key as well.

[[folder:Web Comics]]
* ''Webcomic/CucumberQuest'' has the first of the evil Disaster Masters, Squidmaster, who, rarely for this trope, is actually intelligent. Well, [[DumbMuscle sorta intelligent.]]
* ''Webcomic/GirlGenius'':
** There's that one time in Paris when [[http://www.girlgeniusonline.com/comic.php?date=20090320 someone had a scheme to raise giant squid in the sewers]].
** And the [[http://www.girlgeniusonline.com/comic.php?date=20110325 mechanical squid in the cisterns]], because after all where ''else'' would you keep your mechanical squid?
** ''And'' the giant ''winged'' squid [[http://www.girlgeniusonline.com/comic.php?date=20110530 attacking Castle Wulfenbach]].
* To destroy Lord Hinjo's private ship in ''Webcomic/TheOrderOfTheStick'', Redcloak summons a giant octopus. It was eventually defeated by a [[ThreateningShark shark]]-[[HorseOfADifferentColor mounted]] paladin.
* In ''Webcomic/RustyAndCo'', there's a {{kraken}} [[spoiler:in the moat of the two vampire hipsters. And it [[BunnyEarsLawyer wears puppets on his tentacles.]]]]
* ''Webcomic/SchlockMercenary'' includes a giant squid in the "Touch and Go" arc [[http://www.schlockmercenary.com/2006-01-22 that]] [[http://www.schlockmercenary.com/2006-02-05 turned out]] to not actually be [[http://www.schlockmercenary.com/2006-08-16 a squid]].

[[folder:Western Animation]]
* In ''WesternAnimation/TheFairlyOddParents'', an episode had Timmy, Cosmo and Wanda visiting Atlantis, where their immediately arrested because [[PersonOfMassDestruction Cosmo was responsible for sinking the continent]]. Timmy, having [[Comicbook/{{Aquaman}} Wet Willie]] powers, attempts to summon a giant squid to help them, to which everyone laughs, thinking it doesn't exist. At the end of the episode, the squid finally shows up and destroys Atlantis.
* ''WesternAnimation/FamilyGuy''. The Griffins defense against it is ignoring it.
* ''WesternAnimation/RockosModernLife'' has a giant squid who is attracted to cheese.
* In ''WesternAnimation/{{Wakfu}}'', a giant black [[strike:squid]] kralamoure is protecting Oma Island by destroying in its tentacles any ship coming too close. [[spoiler:It is in fact the form chosen by an ancient shapeshifting dragon.]]
* ''WesternAnimation/TheGarfieldShow'' had a giant squid terrorizing the city's sewers. And it likes donuts.
* In the ''WesternAnimation/CourageTheCowardlyDog'' episode "Last of the Starmakers", the eponymous Starmakers are giant space squids that produce stars instead of ink.
* ''WesternAnimation/SilverHawks'' BigBad Mon*Star's mount is an armored giant space squid named Sky-Runner.
* Hedwig, the BigBad of ''WesternAnimation/SabansAdventuresOfTheLittleMermaid'', has an orange giant octopus as one of her minions.
* In one episode of ''WesternAnimation/TheDeep'', Fontaine and Antaeus end up being attacked by one. Soon, a whole bunch of them show up to attack the Nektons.

[[folder:Real Life]]
* The [[http://en.wikipedia.org/wiki/Giant_Squid Giant Squid]]... and [[http://en.wikipedia.org/wiki/Colossal_Squid Colossal Squid]]. Yes, they do exist. While a few stories circulate of boats being attacked by large squid, these creatures are mainly deep-water dwelling creatures, that mostly eat smaller prey. There have been reports of Giant Squid toothmarks on Sperm Whale skins which indicate that the two species regularly fight each other, but since Sperm Whales actively hunt them, these wounds may have been inflicted in self defense.
** There is only one verifiable story of a giant squid attacking a small boat (in this case a rowboat, not a ship), and even then the only reason it was verifiable was because the people attacked brought back proof--a tentacle that a young boy traveling with them chopped off of the animal. In the rare instance a human interacts with a living giant squid these days, the massive cephalopods come off as {{Gentle Giant}}s.
* Meanwhile, the largest octopus in the ocean is the [[http://en.wikipedia.org/wiki/North_Pacific_Giant_Octopus Giant North Pacific octopus]], with an arm-span of seventeen feet. There is ''not'', as far as most scientists are concerned, any octopus of giant squid-sized proportions or whale-sized proportions, as urban legend seems to state.
* The [[http://en.wikipedia.org/wiki/Humboldt_squid Humboldt squid]], while not a large squid (5-foot long mantle) best fits this trope in its behavior. In California and Baja, where the squid are fished for, it's gained a nickname amongst the fishermen. ''[[NamesToRunAwayFromReallyFast Diablo rojo]]'', which means "red devil". It does not sink boats, but when feeding or being fished up, they are extremely aggressive. Their beaks are too weak to break bones, but their strong arms have sharp teeth which can rip through skin and most wetsuits. They have also been known to attack underwater cameras and will eat other wounded Humboldts. However, outside of feeding and being fished, they have also been observed to be calm and curious, so their behavior is a subject of debate. Regardless, underwater cameraman Scott Cassell--who made a career filming them--won't go in the water with them without wearing a chainmail wetsuit.
* Tusoteuthis, a distant ancestor of the modern-day vampire squid that generally ranged from 20-35 feet, was a fairly common denizen of the Cretaceous-era Kansas seas. Of course, given the [[DeathWorld nature]] of those seas, they were actually pretty low on the food chain. Fossil evidence shows that they were preyed upon by massive predatory fish, and it also stands to reason that they were regular prey items of mosasaurs. It says something about how nasty those seas were when a giant cephalopod of all things was one of the less-threatening of the many predators roaming them.