About the Authors

Caley A. Johnson

Affiliations Doctoral Program in Anthropology, The Graduate Center, City University of New York, New York, New York, United States of America, New York Consortium in Evolutionary Primatology, New York, New York, United States of America

David Raubenheimer

Affiliation Charles Perkins Centre, Faculty of Veterinary Science and School of Biological Sciences, The University of Sydney, Sydney, New South Wales, Australia

Jessica M. Rothman

Affiliations Doctoral Program in Anthropology, The Graduate Center, City University of New York, New York, New York, United States of America, New York Consortium in Evolutionary Primatology, New York, New York, United States of America, Department of Anthropology, Hunter College of the City University of New York, New York, New York, United States of America

David Clarke

Affiliation Department of Biology, Queens College of the City University of New York, Queens, New York, United States of America

Larissa Swedell

LSwedell@qc.edu

Affiliations Doctoral Program in Anthropology, The Graduate Center, City University of New York, New York, New York, United States of America, New York Consortium in Evolutionary Primatology, New York, New York, United States of America, Department of Anthropology, Queens College of the City University of New York, Queens, New York, United States of America, Department of Archaeology, University of Cape Town, Cape Town, South Africa

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JMR LS. Performed the experiments: CAJ DC. Analyzed the data: CAJ DR. Contributed reagents/materials/analysis tools: JMR DR LS. Wrote the paper: CAJ DR JMR LS.