The lessons from nature all apply. Change the environment, and the best-adapted survive. The best-adapted either are that way naturally, or mutate in such a way to make them the best-adapted.

Change agents are mutagens - they disrupt. Some of those disruptions help you survive, others complicate your survival. In a stable ecosystem or for a peak predator, mutations are generally bad. In an unstable ecosystem or for a non-peak predator, mutations are generally good, as they help you survive.

It's an interesting question from a biological perspective.