Author:
Frans B. M. de Waal, Peter L. Tyack, Christophe Boesch, Jack W. Bradbury, Richard Connor, Christine Drea, Anne Engh, Laurence Frank, Karen I. Hallberg, Stephanie Jaffee, Hans Kummer, Tetsuro Matsuzawa, W.C. McGrew, Sarah L. Mesnick, Toshisada Nishi..