Home > Special Features McDonnell Centennial Essays Dec 1999 Guest Editors: C. S. Holling Perspective Searching Explanations of Nature in the Mirror World of Math Marten Scheffer The Mathematical Biology of Human Infections Martin A. Nowak Developing a Scientific Basis for Managing Earth’s Life Support Systems Gretchen C. Daily Synthesis Adaptive Analysis of Locally Complex Systems in a Globally Complex World Timothy Lynam See all Special Features