r/OddSatisfying

▲ 66 r/OddSatisfying+1 crossposts

Grass-Sheep-Wolf ecosystem simulation — wolves go extinct after depleting their prey (agent-based model)

Predator-prey ABM built in Python/NumPy. Each agent moves, eats, reproduces, and dies based on local conditions — no global rules.

The key mechanic is wolf vision radius: wolves can only detect sheep within a limited range. When sheep density drops, wolves start roaming blind and starving — which is what drives the collapse you see here.

Full 9-minute simulation: https://youtu.be/wqR4A4FUABs

u/SimulatedEcology — 1 day ago
▲ 1.8k r/OddSatisfying+9 crossposts

Pride Kaleidocycle, 2026

Just finished a hexaflexagon made of four pride flags and I love how it turned out!

Happy pride, fellow beaders 🌈💖

u/DiabloTheCheeto — 9 days ago