1. School of Anthropology, University of Arizona, Tucson AZ, USA
2. Laboratory for the Evolutionary Endocrinology of Primates, School of Anthropology, University of Arizona, Tucson AZ, USA
3. Co-first authors
4. Department of Anthropology, Northern Illinois University, DeKalb IL, USA
5. NGO Sadabe, Lot AB64bis, Ankadindravola, Ivato Firaisana, 105 Antananarivo, Madagascar