The green circles are the prey and the red ones are the predators. When the prey multiplies, it turns yellow. The prey multiplies in 3 seconds and the predator eats the prey and the predator multiplies. If the predator doesn't eat in 10s, then it dies. They get more and more black if they don't eat. The orange ones eat predators, same mechanics as the predators. Use H to spawn predators in your mouse. Use G to spawn preys in your mouse. Use J to spawn hunters in your mouse. Use 1 to hide variables, use 0 to show them. If there's no prey or predators, then it will automatically spawn them. (Also sometimes help the predators because they're not intelligent, the prey have big brains) (predators do learn where to go sometimes) BIOLOGY THINGS!