About the Authors
- Erica van de Waal
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* E-mail: erica.vandewaal@unine.ch
Affiliations Institute of Biology, University of Neuchâtel, Neuchâtel, Switzerland, Applied Behavioural Ecology and Ecosystem Research Unit, University of South Africa, Florida, South Africa, School of Psychology, University of St Andrews, St Andrews, United Kingdom
- Michael Krützen
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Affiliation Evolutionary Genetics Group, Anthropological Institute and Museum, University of Zürich, Zürich, Switzerland
- Josephine Hula
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Affiliations Applied Behavioural Ecology and Ecosystem Research Unit, University of South Africa, Florida, South Africa, Evolutionary Genetics Group, Anthropological Institute and Museum, University of Zürich, Zürich, Switzerland
- Jérôme Goudet
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Affiliation Department of Ecology and Evolution, University of Lausanne, Lausanne, Switzerland
- Redouan Bshary
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Affiliations Institute of Biology, University of Neuchâtel, Neuchâtel, Switzerland, Applied Behavioural Ecology and Ecosystem Research Unit, University of South Africa, Florida, South Africa
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: EW RB. Performed the experiments: EW JH. Analyzed the data: EW MK JH JG RB. Wrote the paper: EW MK JG RB.