In an ecological system, the success of one species depends on the other species in the same environmental niche.
Theory suggests that different species often find a balance.
For finite populations, the number of members of a species may fluctuate, disturbing the balance, and leading to a breakdown of the system and eventual extinction. This effect needs to be studies through a series of carefully designed simulations. Solving problems through symbiotic co-operation. In many types of problem we try to satisfy many objectives at once. If we create a system of evolving species, each of which is trying to solve different objectives, then we may be able to come up with a good overall solution if these species can co-operate, forming a symbiotic system.