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Verglas

A frozen ocean moon circling a giant planet, sealed under a kilometres-thick ice shell that blocks nearly all sunlight. Tidal flexing keeps a dark, salty sea liquid beneath the ice, warmed and fed by mineral-rich vents on the seabed. Gravity is light and the cold water oxygen-poor, so life clings to the under-ice ceiling above and the vent fields far below.

Desperate Angler

Evo 7FishEats anythingSurfaceStrained

Shaped by πŸ‚ food scarcity

A pale, slightly smaller fish than its ancestor, with a proportionally larger mouth and a still-present, albeit dimmer, bioluminescent lure, clinging to survival.

larger mouthreduced gill surfaceenhanced chemosynthetic symbiontsbioluminescent lureincreased metabolic efficiency
Size
15 cm
Diet
chemosynthetic biofilm grazer with symbiotic supplements and opportunistic scavenging
Habitat
near hydrothermal vents, under ice ceiling
Moves by
hovering swim with occasional darting

Why it evolved

With the collapse of usual food sources, this lineage has intensified its reliance on its existing enhanced chemosynthetic symbionts and developed increased metabolic efficiency to conserve energy in the oxygen-poor waters of Verglas. The larger mouth now serves more for opportunistic scavenging of any organic matter, including smaller organisms like the Rime-Mat or Ice Limpet, rather than efficient grazing. This increased metabolic efficiency comes at the cost of reduced growth and a dimmer lure, making it less effective for attracting prey and requiring more effort to maintain its symbionts, pushing it closer to a scavenger role.

What changed from Vent-Symbiote Angler

Gained:+ increased metabolic efficiency
Lost:16 cm
  • Size: 16 cm 15 cm
  • Diet: chemosynthetic biofilm grazer with symbiotic supplements chemosynthetic biofilm grazer with symbiotic supplements and opportunistic scavenging
🐟FrostgillEvo 1🐟Veridian Fr…Evo 2🐟Veridian He…Evo 3🐟Abyssal Hea…Evo 4🐟Veridian Sw…Evo 4🐟Abyssal Oxy…Evo 5🐟Vent-Symbio…Evo 6🐟Desperate A…Evo 7🐟Shadow Angl…Evo 8
  • resilient
  • strained
  • fragile
  • β˜… canon
  • 🧬 hybrid
  • πŸ’€ extinct
Drag or scroll to move Β· Tab + Enter for keyboard Β· click to select, double-click to openView as list9 species

You choose the situation, not the result. Selection acts on Desperate Angler; the descendant appears above.

Climate

Resources & space

Predators & life

Habitat & extremes

Mate Desperate Angler with another branch of the same lineage to make a hybrid.