Sliders
Population graph
The Population Over Time canvas tracks per-species organism counts across the last 200 ticks, updating every 0.25 seconds. Each species is drawn as a colored line using that species’ assigned hue. The graph gives an at-a-glance view of boom-and-bust cycles, species dominance shifts, and extinction events.Species census legend
Below the population graph, the Species Census row shows a colored dot for each active species alongside its live organism count. Dots use the same 12-color palette assigned at world initialization. Zero-count species remain listed to make extinctions visible.Scenario presets
The Scenario Presets dropdown loads a curated set of slider and checkbox values tuned for a specific ecological dynamic:
Applying a preset calls
applyPreset(), then immediately calls resize() and initWorld() — the world resets automatically with the new parameters. There is no need to click Reset World separately after choosing a preset.