How did our earliest ancestors live? Their material remains, dominated by stone tools, have told us much about their technical abilities, but very little about other activities that made up the rich lives they undoubtedly led.The archaeological study of primate tools, known as Primate Archaeology, has been instrumental in uncovering hidden aspects of our technological heritage. This project, funded by the Leverhulme Trust, is pioneering the archaeology of non-technological chimpanzee behaviours, to help identify novel traces in the early hominin record.