We investigate big evolutionary ideas with little organisms using experimental evolution. Our current primary focus is on multicellularity and evolutionary reversibility, using Baker's yeast. Other research includes 'EvoDevo' with Myxococcus xanthus, history and chance with Escherichia coli, extreme adaptation with bacteria and their viruses, spatial structure, and adaptive radiation with Pseudomonas fluorescens (among other things).
B. A. Columbia College, Columbia University, 1983
Ph.D. Michigan State University, 1993