This is a groundbreaking workwhich brought together studiesof monkeys and apes from boththe laboratory and the field

This is a groundbreaking workwhich brought together studiesof monkeys and apes from boththe laboratory and the field. Manybroad aspects of primate life,including facial expressions,sexual signals, grooming, play,social organization and parental care, are covered bythe contributors and provided a whole new approach toprimate behavior.