In episode 55 of MicrobeWorld Video, filmed at the American Association for the Advancement of Science Meeting in Washington, D.C., on February 18, 2011, Dr. Stan Maloy talks with Francis H. Arnold, Ph.D., Dick and Barbara Dickinson Professor of Chemical Engineering, Bioengineering and Biochemistry, at the California Institute of Technology.Maloy talks with Arnold about laboratory evolution to generate novel and useful enzymes and organisms for applications in medicine and in alternative energy. Her multidisciplinary approach reveals insight into the way natural evolution might have occurred. Less