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This article is about Fauna. You may be looking for Flora.
Spoiler (BZ) Read at own risk

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Fauna is the term for animals, in this case, the animals of Planet 4546B. Fauna in Subnautica can be found all over the planet, from the mysterious depths of the Crystal Caves to the vibrant Safe Shallows, and the fiery pits of the Lava Lakes.

Fauna on Planet 4546B comes in all shapes, sizes, and forms. Ranging from the tiny, cave-dwelling Rockgrub, to the colossal Sea Dragon Leviathan that spews molten minerals from its mouth. Fauna on Planet 4546B is capable of enduring and adapting to various environments, although previously unable to thrive due to the presence of the Kharaa Bacterium. Certain species of small fauna can sometimes be seen forming mostly non-interactive shoals. Fauna on 4546B also has yellow blood. The fact that the appearance of some species of the planet being similar to that of planet Earth species can be explained as a simple case of convergent evolution.

The player can scan Fauna with the Handheld Scanner, the same as they would with Flora and objects, allowing them to view information about creatures in their PDA.

In Subnautica additional scans after unlocking the Data Bank Entry for that particular species of Fauna alert the player as to whether or not the specimen is infected with Kharaa. As Kharaa has been eliminated from the wild in Below Zero this function is not present.

Reproduction[]

Most known fauna species on Planet 4546B are simultaneous hermaphrodites, meaning that they have a single-sex capable of playing the role of either the male or female in reproduction and every individual being able to lay eggs and fertilize them. Two parents are still required to fertilize the eggs once laid, making it sexual reproduction. At least one fauna species is exempt from this and reproduces entirely asexually, although the norm for the planet is sexual reproduction, as can be observed in all species that can be placed in an Alien Containment unit who will require two individuals of their species to produce eggs. The only species that does not reproduce is the Warper, as they are artificial constructs.

The only one of the complex fauna species on the planet known to be an exception to this rule is the Sea Emperor Leviathan species, which is entirely asexual and does not require a mate. The Sea Dragon Leviathan may share this method of reproduction as it is likely the closest living relative of the Sea Emperor Leviathan and was being studied by the Architects to learn more about the Sea Emperor's hatching process, which was apparently successful.

Fauna of The Crater[]

Carnivores[]

Fauna Attitude Biome
Ampeel Fauna
Ampeel
  • Aggressive
Biter Fauna
Biter
  • Aggressive
Blighter Fauna
Blighter
  • Aggressive
Boneshark Fauna
Boneshark
  • Aggressive
Crabsnake Fauna
Crabsnake
  • Aggressive
Crabsquid Fauna
Crabsquid
  • Aggressive
Crashfish Fauna
Crashfish
  • Defensive
Lava Lizard Fauna
Lava Lizard
  • Aggressive
Mesmer Fauna
Mesmer
  • Aggressive
River Prowler Fauna
River Prowler
  • Aggressive
Sand Shark Fauna
Sand Shark
  • Aggressive
Stalker Fauna
Stalker
  • Aggressive
Warper Fauna
Warper
  • Aggressive (when target has Kharaa)
  • Passive when target is not infected

Herbivores[]

Fauna Attitude Biome
Bladderfish Fauna
Bladderfish
  • Passive
Boomerang Fauna
Boomerang
  • Passive
Crimson Ray Fauna
Crimson Ray
  • Passive
Cuddlefish Fauna
Cuddlefish
  • Passive
Eyeye Fauna
Eyeye
  • Passive
Garryfish Fauna
Garryfish
  • Passive
Gasopod Fauna
Gasopod
  • Defensive
Ghostray Fauna
Ghostray
  • Passive
Holefish Fauna
Holefish
  • Passive
Hoopfish Fauna
Hoopfish
  • Passive
Hoverfish Fauna
Hoverfish
  • Passive
Jellyray Fauna
Jellyray
  • Passive
Magmarang Fauna
Magmarang
  • Passive
Oculus Fauna
Oculus
  • Passive
Peeper Fauna
Peeper
  • Passive
Rabbit Ray Fauna
Rabbit Ray
  • Passive
Red Eyeye Fauna
Red Eyeye
  • Passive
Reginald Fauna
Reginald
  • Passive
Skyray Fauna
Skyray
  • Passive
Spadefish Fauna
Spadefish
  • Passive
Spinefish Fauna
Spinefish
  • Passive

Scavengers and Parasites[]

Fauna Attitude Biome
Amoeboid Fauna
Amoeboid
  • Passive
Ancient Floater Fauna
Ancient Floater
  • Passive
Bleeder Fauna
Bleeder
  • Aggressive
Blood Crawler Fauna
Blood Crawler
  • Aggressive
Cave Crawler Fauna
Cave Crawler
  • Aggressive
Floater Fauna
Floater
  • Defensive
Lava Larva Fauna
Lava Larva
  • Passive
Rockgrub Fauna
Rockgrub
  • Passive
Shuttlebug Fauna
Shuttlebug
  • Passive

Harvestable[]

go to Coral for more info on coral on 4546B

Fauna Attitude Biome
Brain Coral Coral
Brain Coral
  • Passive
Coral Shell Plate Coral
Coral Shell Plate
  • Passive
Earthen Coral Tubes Coral
Earthen Coral Tubes
  • Passive
Coral Tube Fauna
Giant Coral Tubes
  • Passive
Slanted Shell Plate Fauna
Slanted Shell Plate
  • Passive
Pyrocoral Fauna
Pyrocoral
  • Passive
Table Coral Flora
Table Coral
  • Passive
Coral Tree Fauna
Tree Mushroom
  • Passive
Shell Plate Fauna
Veined Shell Plate
  • Passive

Leviathan Class[]

Fauna Attitude Biome
Ghost Leviathan Fauna
Ghost Leviathan
  • Aggressive
Ghost Leviathan Fauna
Ghost Leviathan Juvenile
  • Aggressive
Reaper Leviathan Fauna
Reaper Leviathan
  • Aggressive
Reefback Leviathan Fauna
Reefback Leviathan
  • Passive
Reefback Leviathan Juvenile Fauna
Reefback Leviathan Juvenile
  • Passive
Sea Dragon Leviathan Fauna
Sea Dragon Leviathan
  • Aggressive
Sea Emperor Leviathan Fauna
Sea Emperor Leviathan
  • Passive
Sea Emperor Leviathan Baby Fauna
Sea Emperor Leviathan Baby
  • Passive
Sea Emperor Leviathan Juvenile Fauna
Sea Emperor Leviathan Juvenile
  • Passive
Sea Treader Leviathan Fauna
Sea Treader Leviathan
  • Defensive

Extinct Species[]

Species Location of Remains Age
Alpha Peeper Species Fauna
Alpha Peeper Species
  • N/A

Unknown

Alpha Ray Species Fauna
Alpha Ray Species
  • N/A

Unknown

Ancient Skeleton Fauna
Ancient Skeleton

~1,000,000 years

Gargantuan Fossil Fauna
Gargantuan Fossil

~3,000,000 years

Research Specimen Theta Fauna
Research Specimen Theta

~1000 years


Fauna of Sector Zero[]

Carnivores[]

Fauna Attitude Biome
Arctic Ray Fauna
Arctic Ray
  • Passive
Brinewing Fauna
Brinewing
  • Aggressive
Brute Shark Fauna
Brute Shark
  • Aggressive
Crashfish Fauna
Crashfish
  • Defensive
Cryptosuchus Fauna
Cryptosuchus
  • Aggressive
Noot Fish Fauna
Noot Fish
  • Passive
Pengling Fauna
Pengling
  • Passive
Pengwing Fauna
Pengwing
  • Defensive
Pinnacarid Fauna
Pinnacarid
  • Passive
Rock Puncher Fauna
Rock Puncher
  • Aggressive
Snow Stalker Fauna
Snow Stalker
  • Aggressive
Snow Stalker Baby Fauna
Snow Stalker Baby
  • Passive
Spike Trap Yellow
Spikey Trap
  • Aggressive
Squidshark Fauna
Squidshark
  • Aggressive
Symbiote Fauna
Symbiote
  • Aggressive

Herbivores[]

Fauna Attitude Biome
Arctic Peeper Fauna
Arctic Peeper
  • Passive
Arrow Ray Fauna (BZ)
Arrow Ray
  • Passive
Bladderfish Fauna
Bladderfish
  • Passive
Boomerang Fauna
Boomerang
  • Passive
Discus Fish Fauna
Discus Fish
  • Passive
Feather Fish Fauna (BZ)
Feather Fish
  • Passive
Red Feather Fish Fauna
Red Feather Fish
  • Passive
Hoopfish Fauna
Hoopfish
  • Passive
Lily Paddler Fauna
Lily Paddler
  • Defensive
Sea Monkey Fauna
Sea Monkey
  • Passive
Sea Monkey Baby Fauna
Sea Monkey Baby
  • Passive
Skyray Fauna
Skyray
  • Passive
Spinefish Fauna
Spinefish
  • Passive
Spinner Fish Fauna
Spinner Fish
  • Passive
Titan Holefish Fauna
Titan Holefish
  • Passive
Trivalve Fauna
Trivalve
  • Passive

Scavengers & Parasites[]

Fauna Attitude Biome
Eye Jelly Fauna
Eye Jelly
  • Defensive
Hivemind Fauna
Hivemind
  • Passive
Rockgrub Fauna
Rockgrub
  • Passive


Triops Fauna
Triops
  • Passive

Corals[]

Fauna Use Biome
Coral Bridges Coral
Coral Bridges
  • Passive
Earthen Coral Tubes Coral
Earthen Coral Tubes
  • Passive
Shelf Coral Coral
Shelf Coral
  • Passive
Table Coral Coral
Table Coral
  • Passive

Leviathans[]

Fauna Attitude Biome
Chelicerate Fauna
Chelicerate
  • Aggressive
Glow Whale Fauna
Glow Whale
  • Passive
Ice Worm Fauna
Ice Worm
  • Aggressive
Juvenile Ventgarden Fauna
Juvenile Ventgarden
  • Passive
Shadow Leviathan Fauna
Shadow Leviathan
  • Aggressive
Ventgarden Fauna
Ventgarden
  • Passive
Void Chelicerate Fauna
Void Chelicerate
  • Aggressive

Extinct Species[]

Fauna Location of Remains Age
Frozen Leviathan
Frozen Leviathan

~1000 years at most

Gallery[]

Trivia[]

  • As of the Dangerous Creatures update, all fauna have yellow blood. Before this update, all fauna had red blood. This is due to the ESRB giving Subnautica a higher rating than expected due to red blood.
    • Scientifically speaking, the fauna of planet 4546B might have high concentrations of vanabin in their blood.
  • Fauna were once intended to possess inherent attributes, that would have caused them to exhibit unique behaviors. These included, e.g., "Fertile" (occasionally lay eggs that can be hatched), "Alpha" (attacked the player if other creatures were killed by the player in the immediate vicinity), "Complex" (specimens take longer to scan), "Greater" (specimens are of larger size and weight). This, however, was scrapped upon the final release.
  • In the very early stages of Subnautica, there were many unused and cut fauna.
    • An unused creature named the Sandworm could only be found in the Entity Gallery. It was intended to stay in one place under the ground, and when the player or an NPC was right above it, it would spring up and would do 1 damage at a very fast rate. It only had animations for shooting out of the ground, going back into its hole, and an idle animation.
    • The unused Grabcrab creature would leave its burrow and search for items to drag back to its hole. These items included small resources and even small fish. Its burrow also had the same model as the Grabcrab.
    • Unused clusters of Bloom Plankton can be spawned in the game, and react to light. They will glow red if a Flare is shining on them, and white if a Flashlight or Vehicle's light is shining on them.
    • In the Early Access Release trailer, the Large Bird can be seen flying among the Skyrays. They were cut entirely out of the game sometime before Early Access, making their appearance in the trailer the last time they were seen.
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