Temperament
Temperament in ARK: Survival Evolved refers to how likely a creature is to be hostile.
The Rare Flower and
Pheromone Dart can make non-aggressive creatures become aggressive.
Harmless
Cat
Cat creatures will behave different depending of each specimen, they could be passives, neutrals or aggressives.
Cowardly
Cowardly creatures will never fight back, even when tamed, and will attempt to run when attacked. In the case of the Moschops, it will flee, bite you, and then continue fleeing.
Docile
Docile creatures will attack if provoked, otherwise they may ignore the player.
Ankylosaurus
Astrocetus
Blood Crystal Wyvern
Brontosaurus
Crystal Wyvern
Doedicurus
Ember Crystal Wyvern
Gacha
GachaClaus
Gasbags
Mammoth
Megachelon
Pachy
Paraceratherium
Stegosaurus
Super Turkey
Titanosaur
Triceratops
Tropical Crystal Wyvern
Vulture
Elusive
Elusive Creatures are extremely rare and are prone to fleeing.
Evasive
Evasive creatures will attempt to avoid danger and flee or fight when attacked..
Fearful
Fearful creatures will never fight back, and when a Human enters the area, they will attempt to flee.
Languorous
Exclusive to Beelzebufos, they act similar to docile creatures, though behave in a much more relaxed, serene manner whenever wandering.
Loyal
In the wild, Loyal creatures may behave like Skittish or Defensive creatures, but once tamed, they become close, valuable companions.
Naive
Currently Exclusive to Diplodocus. Naive creatures will attempt to make friendship and play with the creature attacking them.
Oblivious
Exclusive to Dodo. They will ignore any sign of danger unless attacked, in which they will flee and not fight back.
Passive
Passive creatures do not fight back and will start to flee once attacked.
Achatina
Ammonite
Basilosaurus
Bulbdog
Bulbdog Ghost
Featherlight
Glowbug
Glowtail
Jug Bug
Shinehorn
Skittish
Skittish creatures will either flee, panic, or do nothing when attacked. In the case of Tapejara, if you get close to it, it will flee at a surprising speed.
Bunny Oviraptor
Diplocaulus
Gallimimus
Maeguana
Maewing
Megaloceros
Oviraptor
Parasaur
Pelagornis
Phiomia
Pteranodon
Quetzal
Tapejara
Stupid
The only creature with the temperament "Stupid" is the Ovis. They'll try to flee if attacked, but because of their stupidity, they'll run into the attacking creature.
Semi-Harmless
Curious
Curious creatures are friendly. They will approach the player, but not attack them. In the case of Compy, however, once two or more approach the player, they will become hostile and attack.
Defensive
Defensive creatures will not attack you, but if you attack them they will defend themselves. In the case of Leedsichthys, they will attack any raft in the open water.
Flippant
Flippant creatures will attack in a frivolous manner when provoked.
Friendly
Friendly creatures will act in a similar manner to Docile creatures, however, if provoked, they may either fight or flee depending on the creature.
Neutral
Neutral creatures attack when provoked. They will forget you after a long time. In the case of Megatherium, once it kills an insect, they will become aggressive. With
Vultures, they will become aggressive if you are near a corpse.
Reactive
Reactive creatures will watch what you do, but if you do something they don’t like, they might fight back or flee. Coelacanth and the
Procoptodon will never fight back.
Dangerous
Aggressive
Aggressive creatures will attack you on sight. In the case of the Pegomastax they start to flee after stealing an item.
Allosaurus
Alpha Basilisk
Alpha Blood Crystal Wyvern
Alpha Carnotaurus
Alpha Fire Wyvern
Alpha Karkinos
Alpha Megalodon
Alpha Mosasaur
Alpha Raptor
Alpha Surface Reaper King
Alpha T-Rex
Alpha Tusoteuthis
Alpha X-Triceratops
Amargasaurus
Araneo
Arthropluera
Basilisk
Basilisk Ghost
Bloodstalker
Bone Fire Wyvern
Broodmother Lysrix
Carcharodontosaurus
Carnotaurus
Cnidaria
Crystal Wyvern Queen
Daeodon
Deinonychus
Desmodus
Dinopithecus King
Direwolf
Direwolf Ghost
Dodo Wyvern
DodoRex
Dragon
Elemental Reaper King
Eurypterid
Experimental Giganotosaurus
Ferox
Golden Striped Brute Megalodon
Golden Striped Megalodon
Griffin
Ichthyornis
Injured Brute Reaper King
Insect Swarm
Karkinos
Lamprey
Leech
Macro-Summoner
Managarmr
Manta
Manticore
Mantis
Mantis Ghost
Megalodon
Megapithecus
Microraptor
Mosasaurus
Nameless
Noglin
Onyc
Parakeet Fish School
Pegomastax
Piranha
Plesiosaur
Pulmonoscorpius
Raptor
Ravager
Reaper
Reaper King
Reaper Prince
Reaper Queen
Rex
Rex Ghost
Rhyniognatha
Rockwell
Rockwell Node
Rockwell Prime
Sabertooth
Seeker
Shadowmane
Snow Owl
Snow Owl Ghost
Subterranean Reaper King
Surface Reaper King
Surface Reaper King Ghost
Terror Bird
Thylacoleo
Titanoboa
Tusoteuthis
Voidwyrm
Wyvern
Yeti
Yutyrannus
Zombie Wyvern
Zomdodo
Nocturnally Aggressive
Some of these creatures usually sleep during daytime hours, posing little to no threat (unless woken up by touching/approaching it closely.) During the day, it is considerably weak and slow, whereas at night they are augmented and dangerous predators, sporting ominous, glowing eyes.
Opportunistic
Opportunistic creatures prey on weak creatures.
Patient
Patient creatures wait for the right time to jump at the player.
Short-Tempered
Creatures that are short-tempered will attack the player after a few seconds.
Territorial
Territorial creatures stay nearby a certain location and will attack if you enter their area.
Argentavis
Baryonyx
Chalicotherium
Dilophosaur
Dire Bear
Dire Polar Bear
Dunkleosteus
Giant Bee
Giant Queen Bee
Giant Worker Bee
Gigantopithecus
Magmasaur
Megalania
Polar Bear
Rock Drake
Spino
Therizinosaur
Thorny Dragon
Titanomyrma
Velonasaur
Angry
Attacks anything and everything with no mercy.
Extremely Territorial
Extremely Territorial creatures stay nearby a certain location and will Aggressively attack if you enter their area. Their territory in question is generally larger than regular territorial creatures.
Highly Aggressive
Exclusive to all Corrupted Creatures,
Enraged Creatures,
Malfunctioned Tek Creatures and
Titans, regardless of their previous temperament, they ravage everything that stands in their path. This includes any structures that are near them.