At some point in history somebody decided to make up some of their own animals and beings, and sometimes the particular creature they made up was interesting enough that others kept using the same made up creatures in their stories.

For organisms with an intelligence about equal to humans or otherwise sapient which usually don't get [[WhatMeasureIsANonHuman wantonly slaughtered by heroes without moral repercussions]], see FantasticSapientSpeciesTropes.

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!!Tropes:
[[index]]
[floatboxright:
Related:
+ FantasticSapientSpeciesTropes
+ OurMonstersAreDifferent
]
[floatboxright:
Subcategories:
+ AngelicTropes
+ DragonTropes
+ {{Doppelganger}}
+ MerTropes
+ UndeadIndex
+ WerebeastTropes
]
* AKindOfOne
* AlienAnimals
* AllTrollsAreDifferent
* ALoadOfBull
* AnimalisticAbomination
* AnimatedArmor
** DancingPants
* AntlionMonster
* AsteroidsMonster
** HydraProblem
* AttackOfTheKillerWhatever
* BenevolentMonsters
* BigCreepyCrawlies
* BigfootSasquatchAndYeti
* BlobMonster
* BondCreatures
** {{Mon}}
* BrainMonster
* BugWar
* CallAPegasusAHippogriff
* CanisMajor
* ChestMonster
* {{Chupacabra}}
* ClockRoaches
* ClockworkCreature
* {{Cthulhumanoid}}
* CuteMonster
* CuteMonsterGirl
** YouSexyBeast
* {{Cyclops}}
* TheDragonsComeBack
* ElementalEmbodiment
** FierySalamander
* EldritchAbomination
* EnergyBeings
* EnthrallingSiren
* FantasticFlora
* FantasticFoxes
* FantasticNatureReserve
* FaunsAndSatyrs
* FearsomeCrittersOfAmericanFolklore
* FemaleMonsterSurprise
* FeatheredSerpent
* GeniusLoci
* GiantFlyer
* GiantSpaceFleaFromNowhere
* GiantSpider
* {{Golem}}
** {{Snowlems}}
* GorgeousGorgon
* TheGreys
* GripingAboutGremlins
* HarpingOnAboutHarpies
* HeadlessHorseman
* TheHeartless
* HordeOfAlienLocusts
* HornedHumanoid
* HumanoidAbomination
* HybridMonster
* HybridOverkillAvoidance
* TheHypnotoad
* TheImp
* InsectoidAliens
* InvisibleMonsters
* TheJerseyDevil
* {{Kaiju}}
* KillerSpaceMonkey
* TheKrampus
* {{Leprechaun}}
* {{Lilliputians}}
** LilliputianWarriors
* LittleBitBeastly
** CatGirl
* LittleGreenMen
* LivingClothes
* LivingGasbag
* LivingShadow
* LivingShip
* LivingStructureMonster
** LivingStatue
* LivingToys
** SlidingScaleOfLivingToys
* MacGuffinGuardian
* ManEatingPlant
** WhenTreesAttack
* ManekiNeko
* MechanicalLifeforms
** InstantAIJustAddWater
** MechanicalMonster
** {{Robeast}}
* {{Medusa}}
* MegaMicrobes
* MegaNeko
* MetamorphosisMonster
* MixAndMatchCritters
* MonsterFunFacts
* MonsterKnight
* MonsterLord
* MonsterRoommate
* MonstrousHumanoid
* MoonRabbit
* TheMorlocks
* MuckMonster
* MushroomMan
* {{Mutants}}
* NatureSpirit
* {{Nephilim}}
* NonHumanHead
* NonMaliciousMonster
* NuclearNasty
* {{Oni}}
* OracularHead
* {{Ouroboros}}
* OurAngelsAreDifferent
** CelestialParagonsAndArchangels
* OurBansheesAreLouder
* OurCentaursAreDifferent
* OurCryptidsAreMoreMysterious
* OurDemonsAreDifferent
** BigRedDevil
** DemonLordsAndArchdevils
** {{Hellhound}}
** HellishHorse
** HornyDevils
* OurDragonsAreDifferent
* OurGargoylesRock
* OurGeniesAreDifferent
* OurGiantsAreBigger
* OurGnomesAreWeirder
* OurGoblinsAreDifferent
* OurGodsAreDifferent
** OurTitansAreDifferent
* OurGryphonsAreDifferent
* OurHomunculiAreDifferent
* OurManticoresAreSpinier
* OurMermaidsAreDifferent
** ApparentlyHumanMerfolk
** UnscaledMerfolk
* OurMonstersAreWeird
* OurOgresAreHungrier
* OurSpiritsAreDifferent
* OurWerebeastsAreDifferent
** OurWerewolvesAreDifferent
*** WerewolfThemeNaming
*** WolfMan
** SelkiesAndWereseals
** {{Skinwalker}}
* ParadoxPerson
* {{Pegasus}}
* PettingZooPeople
** BirdPeople
** CatFolk
** FishPeople
** LizardFolk
** MoleMen
** RatMen
* ThePhoenix
* PigMan
* {{Planimal}}
* PlantAliens
* PlantPerson
* PrehistoricMonster
* ProportionatelyPonderousParasites
* TheReptilians
* RiddlingSphinx
* RockMonster
* RodentsOfUnusualSize
* SeaMonster
** GiantEnemyCrab
** KrakenAndLeviathan
** StockNessMonster
** TurtleIsland
* SandWorm
* ShoulderSizedDragon
* SiliconBasedLife
* SingleSpecimenSpecies
* SlimeGirl
* SnakePeople
* SpaceWhale
* SpiderPeople
* SpiderSwarm
* StarfishAliens
* StingyJack
* ThingsThatGoBumpInTheNight
* {{Tulpa}}
* TheUndead
** DemBones
** FrankensteinsMonster
** {{Mummy}}
** NotAZombie
** NonHumanUndead
*** {{Dracolich}}
*** RaisingTheSteaks
** OurGhostsAreDifferent
** OurGhoulsAreCreepier
** OurLichesAreDifferent
** OurVampiresAreDifferent
*** ChineseVampire
*** ClassicalMovieVampire
*** {{Dhampyr}}
** OurWightsAreDifferent
** {{Shinigami}}
** UndeadChild
** SlidingScaleOfUndeadRegeneration
* TheVirus
** TheCorruption
* UltimateLifeForm
* {{Unicorn}}
** WingedUnicorn
* {{Valkyries}}
* {{Wendigo}}
* WingedHumanoid
* {{Youkai}}
** {{Kappa}}
** {{Karakasa}}
** {{Kitsune}}
** {{Orochi}}
** StringyHairedGhostGirl
** {{Tanuki}}
** {{Tengu}}
** ZashikiWarashi
* YowiesAndBunyipsAndDropBearsOhMy
[[/index]]
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