About the Authors
Centre for Evolutionary Biology, School of Animal Biology (M092), University of Western Australia, Crawley, Western Australia, Australia
ARC Centre of Excellence in Cognition and its Disorders, School of Psychology, University of Western Australia, Crawley, Western Australia, Australia
The authors have declared that no competing interests exist.
Conceived and designed the experiments: LWS GR MP. Performed the experiments: MP. Analyzed the data: LWS. Contributed reagents/materials/analysis tools: LWS. Wrote the paper: LWS.