David Queller, PhD, aims to uncover how cooperative behaviors emerge and persist despite the competitive nature of evolutionary processes. Dr. Queller collaboratively conducts empirical studies on cooperation among social amoebas and their bacterial symbionts, as well as the conflicts between amoebas and their bacterial prey. He employs genomic studies to understand past adaptations and experimental evolution to observe adaptation in real time. He was recently elected to the National Academy of Sciences, in recognition of his distinguished and continuing achievements in original research. Election to the academy is considered one of the highest honors accorded a U.S. scientist or engineer.