About the Authors
- Marie Nitzschner, Alicia P. Melis, Juliane Kaminski, Michael Tomasello
- Department of Developmental and Comparative Psychology, Max-Planck Institute for Evolutionary Anthropology, Leipzig, Germany
The authors have declared that no competing interests exist.
Conceived and designed the experiments: MN AM JK MT. Performed the experiments: MN. Analyzed the data: MN AM JK MT. Wrote the paper: MN AM JK MT.