About the Authors

Herman Pontzer


Affiliations Department of Anthropology, Hunter College, New York, New York, United States of America, New York Consortium in Evolutionary Primatology, New York, New York, United States of America

David A. Raichlen

Affiliation School of Anthropology, University of Arizona, Tucson, Arizona, United States of America

Brian M. Wood

Affiliation Department of Anthropology, Yale University, New Haven, Connecticut, United States of America

Audax Z. P. Mabulla

Affiliation Department of Archeology, University of Dar es Salaam, Dar es Salaam, Tanzania

Susan B. Racette

Affiliation Washington University School of Medicine, St. Louis, Missouri, United States of America

Frank W. Marlowe

Affiliation Division of Biological Anthropology, University of Cambridge, Cambridge, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: HP DAR BMW AZPM SBR FWM. Performed the experiments: HP DAR BMW SBR. Analyzed the data: HP DAR BMW SBR. Wrote the paper: HP DAR BMW AZPM SBR FWM.