System Model
This model is a study of population growth based on a growth factor over time. The easiest way to visualize a population growth model is to assume that some proportion of the population reproduces during each time step and some proportion dies. The difference between the two is the growth factor. The rabbits and wolves affect each other's populations. The more rabbits there are, the higher the wolves' birth rate. The more wolves there are, the higher the rabbits' death rate.
Agent Model
This model shows wolves preying on rabbits. Rabbits and wolves move randomly and reproduce. If a wolf is next to a rabbit, it eats the rabbit. A graph counts the number of rabbits and wolves over time.