“Actually,” Malcolm said, “behavior is always changing, all the time. Our planet is a dynamic, active environment. Weather is changing. The land is changing. Continents drift. Oceans rise and fall. Mountains thrust up and erode away. All the organisms on the planet are constantly adapting to those changes. The best organisms are the ones that can adapt most rapidly. That’s why it’s hard to see how a catastrophe that produces a large change could cause extinction, since so much change is occurring all the time, anyway.”
