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Tethys Shallows

A warm, shallow inland sea under a yellow sun and Earth-like gravity. Tidal mudflats meet brackish lagoons; oxygen is plentiful in the water, scarce in the thick muck.

Spiny Symbiotic Gulpfish

Evo 5FishEats anythingShallows / ShoreResilient

Shaped by πŸ‘₯ overcrowding

This Gulpfish variant has developed defensive spines and a slightly reduced mouth, relying more on cooperative hunting tactics and partner detection for survival.

defensive spinesreduced mouth sizeenhanced chemosensory organscooperative hunting14 cm
Size
14 cm
Diet
generalist
Habitat
warm, brackish lagoons and tidal mudflats
Moves by
robust swimming, often in pairs

Why it evolved

Intensified competition and predation pressure from multiple 15-17 cm generalists and carnivores (like the Mud-Stalker and Famine Fins) drove selection for defensive adaptations and altered feeding strategies. The development of spines provides protection, while a slightly reduced mouth size, coupled with enhanced chemosensory organs, redirects energy towards better partner detection and coordinated hunting, compensating for reduced individual foraging efficiency in the crowded Tethys Shallows. The trade-off is a reduced capacity for opportunistic, solitary feeding.

What changed from Symbiotic Gulpfish

Gained:+ defensive spines+ reduced mouth size+ enhanced chemosensory organs+ cooperative hunting+ 14 cm
Lost:bilateral symmetry for cooperative movementenhanced sensory organs for partner detectionmodified mouthparts for food sharingreduced individual foraging drive15 cm
  • Size: 15 cm 14 cm
🐟MudfishEvo 1🐟Tidewallow …Evo 2🐟Gasping Mud…Evo 2🐟Storm-Tide …Evo 3🐟Lagoon-Boun…Evo 3🐟Brackish Gl…Evo 6🧬🐟Famine FinsEvo 3🐟Symbiotic G…Evo 4🐟Resilient G…Evo 4🐟Tethys Bloo…Evo 4🐟Tidal Shift…Evo 7🐟GulpfinEvo 4🧬🐟Spiny Symbi…Evo 5🐟Cooperative…Evo 5🐟Tethys Glim…Evo 5🐟Verdant Tid…Evo 5🐟Osmotic Gul…Evo 6🐟Detox Gulpf…Evo 7
  • 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 list18 species

You choose the situation, not the result. Selection acts on Spiny Symbiotic Gulpfish; the descendant appears above.

Climate

Resources & space

Predators & life

Habitat & extremes

Mate Spiny Symbiotic Gulpfish with another branch of the same lineage to make a hybrid.