Waterfall Slime

 | Property | Value |-|---|---|+| --- | --- | | Type | Anchored | | Category | Unknown |  -**Waterfall Slime** is an unimplemented Lifeform.+**Waterfall Slime** is an unimplemented Lifeform in Subnautica 2.   ## Databank Entry   *Discoidea pneumakatechon*. A pendulous slime of simple eukaryote cells which has expelled its own ability to breathe.   ### 1. Sulfide stress   A drop in oxygen levels and a rise in hydrogen sulfide has caused the slime to abandon oxygen-breathing life and return to a slower sulfur-based metabolism.   ### 2. Mitochondrial background   In complex Earth life, hydrogen sulfide poisons the cellular powerhouses called mitochondria. Most Protean cells have similar oxygen-burning compartments, though their origin is unknown. The cells of the waterfall slime have destroyed these compartments, accepting a 94% drop in metabolic efficiency in order to survive deoxygenation.   ### 3. Sulfide source   Hydrogen sulfide is produced by the decomposition of biomatter in oxygen-poor water. The waterfall slime's sulfur tolerance makes it a good indicator of mass death elsewhere in the biosphere.   **Assessment:** a poor sign for the long term survival of Protean oceans. Rising hydrogen sulfide levels after ocean deoxygenation played a role in Earth's Permian Extinction, which wiped out 95% of species on Earth.