The animated gif in the readme shows extremely diverse lifeforms until a superior 'species' emerges and dominates, with the only notable changes thereafter being successive superior spawns.
Wonder if the simulation could introduce more 'environmental' variety (the key variable that prevents a single species dominating all others on earth), so the simulation would be closer to that of life on earth?
Why is the density greater at equally spaced grid lines?
This is how earth works too. Humans figured out how to survive in all of earth's ecosystems then bulldozed the whole thing. Those waves sweeping across the grid at the end are different countries becoming dominate.