Africa's equatorial rain forests cover an area roughly the size of continental Western Europe, and yet the history of this area remains largely unexplored. Robert Harms makes an important advance in this book toward recovering that history by telling the story of the Nunu, who live in and around the swampy floodplains of the middle Zaire River. A key element in Nunu history has been the small-scale, short-distance migrations that continually led individuals...