About the Authors

Leanne Proops

leanne.proops@gmail.com

Affiliation Mammal Vocal Communication and Cognition Research, Department of Psychology, University of Sussex, Sussex, United Kingdom

Jenny Rayner

Affiliation Mammal Vocal Communication and Cognition Research, Department of Psychology, University of Sussex, Sussex, United Kingdom

Anna M. Taylor

Affiliation Mammal Vocal Communication and Cognition Research, Department of Psychology, University of Sussex, Sussex, United Kingdom

Karen McComb

Affiliation Mammal Vocal Communication and Cognition Research, Department of Psychology, University of Sussex, Sussex, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: LP KM. Performed the experiments: LP JR AMT. Analyzed the data: LP. Contributed reagents/materials/analysis tools: LP KM. Wrote the paper: LP KM JR AMT.