About the Authors

Andrew A. Brown


Affiliation Institute of Archaeology, University College London, London, United Kingdom

Tim Thomas

Affiliation Department of Anthropology and Archaeology, University of Otago, Dunedin, New Zealand

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: AB TT. Performed the experiments: AB TT. Analyzed the data: AB TT. Wrote the paper: AB TT.