About the Authors

Zewdi J. Tsegai

Affiliations Department of Anthropology, University College London, London, United Kingdom, Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany

Tracy L. Kivell

Affiliations School of Anthropology and Conservation, The University of Kent, Canterbury, United Kingdom, Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany

Thomas Gross

Affiliation Institute of Lightweight Design and Structural Biomechanics, Vienna University of Technology, Vienna, Austria

N. Huynh Nguyen

Affiliation Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany

Dieter H. Pahr

Affiliation Institute of Lightweight Design and Structural Biomechanics, Vienna University of Technology, Vienna, Austria

Jeroen B. Smaers

Affiliations Department of Anthropology, University College London, London, United Kingdom, Department of Anthropology, Stony Brook University, Stony Brook, New York, United States of America

Matthew M. Skinner

m.skinner@ucl.ac.uk

Affiliations Department of Anthropology, University College London, London, United Kingdom, Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MMS TLK ZJT TG DHP JBS. Performed the experiments: ZJT TG MMS JBS. Analyzed the data: ZJT MMS TLK TG DHP NHN JBS. Contributed reagents/materials/analysis tools: DHP JBS MMS TLK. Wrote the paper: ZJT MMS TLK TG DHP JBS NHN.