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This article is about the Fauna in Below Zero. To see this subject's article on the Subnautica Wiki, click here.
Fauna on Planet 4546B are unusual compared to fauna of Earth in many ways. Planet 4546B's ecosystem is dominated by vertebrates whilst vertebrates make up only a very small portion of life on Earth. Imbalances such as this and size disparity between predator and prey may be a result of the Kharaa bacterium.

All known fauna on 4546B possess yellow blood. On Earth yellow blood is seen in the sea cucumbers.

Reproduction

All known complex fauna on 4546B are simultaneous hermaphrodites, each individual capable of both laying eggs and fertilising eggs. Despite this, they are not asexual, as individuals do not fertilise their own eggs. Eggs are fertilised by another individual of the species.

Only one of the known complex fauna species is an exception to this rule; the Sea Emperor Leviathan species is entirely asexual and does not require a mate, unlike other known species. The Amoeboid, a simple fauna species is also asexual, reproducing via a process similar in nature to binary fission.

Sector Zero Species

Fauna Attitude Biome
Arctic Peeper Fauna
Arctic Peeper
Passive
Arctic Ray Fauna
Arctic Ray
Passive
Boomerang Subspecies
Boomerang Subspecies
Passive
  • TBA
Brinewing Fauna
Brinewing
Aggressive
  • TBA
Brute Shark Fauna
Brute Shark
Aggressive
Alex Shark crustacean
Chelicerate
Aggressive
  • TBA
Discus Details
Discus
TBA
  • TBA
Glow Whale Fauna
Glow Whale
Passive
Ice Worm Fauna
Ice Worm
Aggressive
  • TBA
Isosceles Ray Infobox
Isosceles Ray
Passive
  • TBA
Large Bird
Large Bird
TBA
  • TBA
Lily Paddler Fauna
Lily Paddler
TBA
  • TBA
Nootfish Fauna
Nootfish
TBA
  • TBA
Alien Penguin Fauna Baby
Pengling
Passive
Alien Penguin Fauna Adult
Pengwing
Defensive
Pinnicarid Fauna
Pinnacarid
Passive
Rock Puncher Fauna
Rock Puncher
Defensive
Sea Monkey Fauna
Sea Monkey
Passive
Sea Monkey Fauna Baby
Sea Monkey Baby
Passive
  • TBA
Shadow Leviathan
Shadow Leviathan
Aggressive
  • TBA
Snow StalkerF
Snowstalker
Aggressive
  • TBA
Spinnerfish Fauna
Spinnerfish
Passive
Squidshark Fauna
Squidshark
Aggressive
Symbiote Fauna
Symbiote
Aggressive
Titan Holefish Fauna
Titan Holefish
Passive
Triops Fauna
Triops
TBA
  • TBA
Trivalve Fauna
Trivalve
Passive
  • TBA
Alex-ries-alex-ventgardenx02
Ventgarden
TBA
  • TBA

Possible Below Zero Species

Fauna Attitude Biome
Hover Lizard Fauna
Hover Lizard
TBA
  • TBA
Icedragon4
Ice Dragon
Aggressive
  • TBA

Returning Species

Fauna Attitude Biome
Bladderfish Fauna
Bladderfish
Passive
Crash Fauna
Crashfish
Defensive
Hoopfish Fauna
Hoopfish
Passive
Rockgrub Fauna
Rockgrub
Passive
  • TBA
Sea Emperor Leviathan Fauna (Juvenile)
Sea Emperor Leviathan
Passive
Skyray Fauna
Skyray
Passive
  • TBA

Placeholder Species

Fauna Attitude Biome
Blighter Fauna
Blighter
Aggressive
Boneshark Fauna
Boneshark
Aggressive
Boomerang Fauna
Boomerang
Passive
Eyeye Fauna
Eyeye
Passive
Rabbit Ray Fauna
Rabbit Ray
Passive
Blood Hoopfish Fauna
Spinefish
Passive
Stalker Fauna
Stalker
Aggressive