Fauna

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Fauna are life forms found all over the world of Subnautica, from the deepest darkest depths of the secretive Lost River to the vibrant Safe Shallows.

There is a large variety of Fauna, ranging from the minuscule, cave-dwelling Rockgrub, to the colossal Sea Dragon Leviathan that spews molten minerals from its mouth. Fauna on Planet 4546B are capable of enduring and adapting to various environments, although unable to thrive due to Carar.

Fauna on Planet 4546B only have one gender that is capable of both laying eggs and fertilising them. Two parents are still needed in the majority of cases. Fauna on 4546B also have yellow blood. Some creatures in real life have yellow blood, which the colouration is derived from vanadium pigments, but it is unknown whether this is the case for the fauna on 4546B, as vanadium is neither a collectable material or even known to be present on the planet.

Current list of fauna in-game

Carnivores

Fauna	Attitude	Biome
Ampeel	Aggressive	Blood Kelp Caves Blood Kelp Zone Bulb Zone
Biter	Aggressive	Dunes Grassy Plateaus Jelly Shroom Caves Mountains Mountain Island Mountain Range Caves
Blighter	Aggressive	Blood Kelp Caves Blood Kelp Zone
Boneshark	Aggressive	Crag Field Bulb Zone Mushroom Forest Primary Containment Facility Aquarium Underwater Islands Caves Underwater Islands
Crabsnake	Aggressive	Jelly Shroom Caves
Crabsquid	Aggressive	Blood Kelp Caves Blood Kelp Zone Deep Grand Reef Lost River
File:Crash Fauna.png Crashfish	Defensive	Kelp Forest Caves Safe Shallows Safe Shallows Caves
Lava Lizard	Aggressive	Lava Lakes Inactive Lava Zone Corridor Inactive Lava Zone
Mesmer	Aggressive	Crag Field Kelp Forest Caves Bulb Zone Lost River Mushroom Forest
Reaper Leviathan	Aggressive	Aurora Crash Zone Dunes Mountain Island Mountains
River Prowler	Aggressive	Lost River
Sand Shark	Aggressive	Crash Zone Dunes Grassy Plateaus
Sea Dragon Leviathan	Aggressive	Lava Lakes Inactive Lava Zone
Sea Emperor Leviathan	Passive	Primary Containment Facility Aquarium
Sea Emperor Baby	Passive	Primary Containment Facility
Stalker	Aggressive	Crash Zone Kelp Forest Kelp Forest Caves Primary Containment Facility Aquarium

Herbivores

Fauna	Attitude	Biome
Bladderfish	Passive	Grand Reef Grassy Plateaus Kelp Forest Primary Containment Facility Aquarium Mushroom Forest Safe Shallows Underwater Islands
Boomerang	Passive	Crag Field Crash Zone Deep Grand Reef Dunes Grand Reef Grassy Plateaus Grassy Plateaus Caves Kelp Forest Kelp Forest Caves Bulb Zone Primary Containment Facility Aquarium Mountain Island Mountain Range Caves Mushroom Forest Safe Shallows Safe Shallows Caves Sea Treader's Path Sea Treader's Tunnel Caves Sparse Reef Underwater Islands Caves Underwater Islands
Crimson Ray	Passive	Lava Lakes Inactive Lava Zone
Eyeye	Passive	Crash Zone Dunes Grand Reef Jelly Shroom Caves Kelp Forest Bulb Zone Bulb Zone Caves Sea Treader's Path Sea Treader's Tunnel Caves
Garryfish	Passive	Dunes Primary Containment Facility Aquarium Safe Shallows Safe Shallows Caves Underwater Islands Caves Underwater Islands
Gasopod	Defensive	Safe Shallows
Ghostray	Passive	Lost River
Holefish	Passive	Crash Zone Primary Containment Facility Aquarium Bulb Zone Caves Mushroom Forest Caves Safe Shallows
Hoopfish	Passive	Crag Field Grand Reef Kelp Forest Caves Bulb Zone Primary Containment Facility Aquarium Sea Treader's Path Sea Treader's Tunnel Caves Underwater Islands
Hoverfish	Passive	Crash Zone Primary Containment Facility Aquarium Kelp Forest
Jellyray	Passive	Deep Grand Reef Mushroom Forest
Magmarang	Passive	Lava Lakes Inactive Lava Zone Corridor Inactive Lava Zone
Oculus	Passive	Primary Containment Facility Aquarium Jelly Shroom Caves
Peeper	Passive	Primary Containment Facility Aquarium Crash Zone Dunes Grand Reef Safe Shallows Sparse Reef Mountains Northeastern Mushroom Forest
Rabbit Ray	Passive	Crash Zone Kelp Forest Primary Containment Facility Aquarium Safe Shallows
Red Eyeye	Passive	Lava Lakes Inactive Lava Zone Corridor Inactive Lava Zone
Reefback	Passive	Blood Kelp Zone Crag Field Grassy Plateaus Bulb Zone Mushroom Forest Sparse Reef Underwater Islands
Reginald	Passive	Crag Field Crash Zone Deep Sparse Reef Grand Reef Grassy Plateaus Grassy Plateaus Caves Primary Containment Facility Aquarium Lost River Mountain Range Caves Mountains Sparse Reef
Sea Treader	Defensive	Grand Reef Sea Treader's Path Sea Treader's Tunnel Caves
Spadefish	Passive	Dunes Deep Sparse Reef Grand Reef Grassy Plateaus Mushroom Forest Mushroom Forest Caves Sea Treader's Path Sea Treader's Tunnel Caves Sparse Reef Underwater Islands
Spinefish	Passive	Blood Kelp Caves Blood Kelp Zone Lost River Bone Fields Caves

Scavengers & Parasites

Fauna	Attitude	Biome
Bleeder	Aggressive	Aurora Deep Sparse Reef Grassy Plateaus Grassy Plateaus Caves Kelp Forest Kelp Forest Caves Lost River Sparse Reef
Blood Crawler	Aggressive	Blood Kelp Zone Blood Kelp Caves Lost River
Cave Crawler	Aggressive	Aurora Dunes Dunes Caves Floating Island Mountain Island Mountain Range Caves Primary Containment Facility Aquarium Underwater Islands Caves
Floater	Passive	Blood Kelp Zone Floating Island Grassy Plateaus Safe Shallows Underwater Islands
Lava Larva	Passive	Lava Lakes Inactive Lava Zone Corridor Inactive Lava Zone
Rockgrub	Passive	Dunes Caves Dunes Deep Sparse Reef Bulb Zone Bulb Zone Caves Sparse Reef
Shuttlebug	Passive	Crag Field Crash Zone Dunes Deep Sparse Reef Grassy Plateaus Caves Bulb Zone Mountain Range Caves Mountains Mushroom Forest Caves PCF Aquarium Sea Treader's Path Sea Treader's Tunnel Caves Sparse Reef

Other Entities

Fauna	Attitude	Biome
Shoal of Fish	Passive	All Biomes
Skyray	Passive	Aurora Crash Zone Floating Island Mountain Island Safe Shallows
Starfish	Passive	Degasi Seabases Jelly Shroom Caves
Warper	Aggressive when target is infected with Carar Passive when target is not infected	Lava Lakes Blood Kelp Zone Deep Grand Reef Dunes Grand Reef Inactive Lava Zone Inactive Lava Zone Corridor Lost River Mountain Island Precursor Bases Sea Treader's Path

In Development

Fauna	Attitude	Biome
Cute Fish	Passive
Ghost Leviathan	Aggressive	-
Sea Emperor Juvenile	Passive	Blood Kelp Zone Bulb Zone Crag Field Grand Reef Grassy Plateaus

Possible Post 1.0 Additions

Fauna	Attitude	Biome
Bloom Plankton	Passive	-
Rock Puncher	-	-

Gallery

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  Subnautica Fauna Sheet 1

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  Subnautica Fauna Sheet 2

Trivia

• Fauna were intended to posses 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), ... Whether these attributes are currently implemented or will be implemented in future updates is unknown.
• As of the Dangerous Creatures update, all fauna have yellow blood. Before this update, fauna had red blood. This is due to the ESRB giving Subnautica a higher rating than expected due to red blood.
• The Cute Fish is currently the only obtainable pet fauna in development, which is obtainable through the debug console and will only be granted to players whom purchased the early access version or the special edition of Subnautica.
• If you hold a small animal in your hand when a carnivorous fauna is about to attack, it will eat the animal out of your hand, instead of attacking you.
• In the very early stages, there was an unused Sandworm that could only be spawned using the console, it would 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 but at a very fast rate. It never had any animations.