About the Authors

Alhaji Cherif

alhaji.cherif@maths.ox.ac.uk

Affiliations Mathematical Institute, University of Oxford, Oxford, United Kingdom, School of Human Evolution and Social Change, Arizona State University, Tempe, Arizona, United States of America

Kamal Barley

Affiliation School of Human Evolution and Social Change, Arizona State University, Tempe, Arizona, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: AC. Performed the experiments: AC KB. Analyzed the data: AC KB. Contributed reagents/materials/analysis tools: AC KB. Wrote the paper: AC.