This book is part of a series dedicated to the Aka pygmees of Central Africa. It comprises the first part of a pluridisciplinary study oriented towards the linguistic approach of different aspects of social reality. This volume assembles research on this pygmean population and its natural and human milieu of researchers of different disciplines: linguistics, ethnology, ethnolinguistics, ethnosciences (ethnobotanics, ethnozoology, ethnomedicine and ethnopharmacology), ecology and ethnomusicology. French text.