← Explore all worldsWildwood Explore a predator–prey ecosystem of berries, rabbits and foxes. Change the landscape and food supply, then follow populations through time. Enable JavaScript in a browser with WebGL 2 to run this interactive simulation.Watch a little world where plants and animals depend on each other. Berries grow, ripen, and eventually rot. Rabbits eat ripe berries for energy.Well-fed rabbits can have offspring. Foxes hunt rabbits and can have cubs when there is enough food.Animals grow old, and they can starve if food runs out. More of one animal can mean less food for another! Try this: Open Environment and try fewer foxes or more berry bushes. Watch the graph to see what changes. Explore related worldsRabbit RunCrater MoonMurmuration