About the Authors

Ines Fürtbauer

ifuertb@uni-goettingen.de

Affiliations Primate Social Evolution Group, Courant Research Centre Evolution of Social Behaviour, Georg-August-University Göttingen, Göttingen, Germany, Reproductive Biology Unit, German Primate Center, Göttingen, Germany, Integrative Primate Socioecology Group, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany

Michael Heistermann

Affiliation Reproductive Biology Unit, German Primate Center, Göttingen, Germany

Oliver Schülke

Affiliations Integrative Primate Socioecology Group, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany, Courant Research Centre Evolution of Social Behaviour, Georg-August-University Göttingen, Göttingen, Germany

Julia Ostner

Affiliations Primate Social Evolution Group, Courant Research Centre Evolution of Social Behaviour, Georg-August-University Göttingen, Göttingen, Germany, Integrative Primate Socioecology Group, 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: IF OS JO. Performed the experiments: IF OS JO. Analyzed the data: IF. Contributed reagents/materials/analysis tools: MH OS JO. Wrote the paper: IF MH OS JO.