[1] Univ Illinois, Dept Anthropol, Urbana, IL USA
[2] Univ Illinois, Carl R Woese Inst Genom Biol, Urbana, IL USA
[3] CEHA, Ecohlth Res Grp, Kampala, Uganda
[4] Makerere Univ, Coll Vet Med Anim Resources & Biosecur COVAB, Dept Wildlife & Aquat Anim Resources, Kampala, Uganda
[5] Chimpanzee Sanctuary & Wildlife Conservat Chimpan, Ngamba Isl, Uganda
[6] Univ Texas Austin, Dept Anthropol, Austin, TX 78712 USA
[7] Univ Limpopo, Dept Biodivers, Polokwane, South Africa
[8] Univ Michigan, Dept Ecol & Evolutionary Biol, Ann Arbor, MI 48109 USA
[9] Columbus Zoo & Aquarium, Columbus, OH USA
[10] Northern Illinois Univ, Dept Anthropol, De Kalb, IL USA
[11] Tanzania Forest Conservat Grp, Dar Es Salaam, Tanzania
[12] Nocturnal Primate Res Grp, Dar Es Salaam, Tanzania
[13] Univ Calif Davis, Dept Psychol, Davis, CA 95616 USA
[14] Univ Colorado, Dept Anthropol, Boulder, CO 80309 USA