Skip to content
SpecEvo
← SpecEvo
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.

Dart-Drifter

Evo 2SwimmerEats plantsOpen waterResilient

Shaped by 🌊 flooding

A larger, more buoyant swimmer that drifts through the open water, passively feeding on plankton.

pelagicslightly largermore buoyantplanktivore
Size
12 cm
Diet
planktivore
Habitat
open lagoon
Moves by
drifting swim

Why it evolved

The repeated flooding and drying of the habitat makes staying in one place risky, favoring a more pelagic lifestyle. Increased buoyancy allows the Dart-Drifter to spend more time passively drifting in the open water, consuming plankton, and less energy on active swimming. This is advantageous under the Tethys Shallows' warm, open lagoon conditions. However, this increased size and reduced agility makes it more vulnerable to the Shoal-Hunter, a trade-off for greater habitat exploitation.

What changed from Dart-Swimmer

Gained:+ pelagic+ slightly larger+ more buoyant
Lost:fast-swimming10 cmopen water
  • Size: 10 cm 12 cm
  • Moves by: darting swim drifting swim
🐬Dart-SwimmerEvo 1🐬Dart-DrifterEvo 2🐬Lagoon-Skim…Evo 3🐬Mud-DiverEvo 4🐬Salinavigat…Evo 5
  • 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 list5 species

You choose the situation, not the result. Selection acts on Dart-Drifter; the descendant appears above.

Climate

Resources & space

Predators & life

Habitat & extremes

Mate Dart-Drifter with another branch of the same lineage to make a hybrid.