Discrete Event Simulation

• A natural scientist may be interested in a system of wolves and sheep, where the number of wolves changes with a constant birth rate and a death rate that is inversely proportional to the number of sheep, and the number of sheep changes with a constant birth rate and a death rate that is directly proportional to the number of wolves. The scientist would like to know the following: Do the number of wolves and the number of sheep stabilize in the long run, and if so to what values? Or do they vary cyclically, and if so with what period and phase?