Stefanie Heinicke (Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany;German Centre for Integrative Biodiversity Research (iDiv) Halle-Leipzig-Jena, Leipzig, Germany), Roger Mundry (Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany), Christophe Boesch (Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany; Wild Chimpanzee Foundation (West Africa Representation), Abidjan, Côte d’Ivoire), Bala Amarasekaran (Tacugama Chimpanzee Sanctuary, Freetown, Sierra Leone), et al. (Collaboration)