| Affiliation: | 1. Brain Function Research Group, School of Physiology, University of the Witwatersrand, Johannesburg, Gauteng, South Africa;2. Department of Anthropology, University of Wisconsin–Madison, Madison, Wisconsin;3. Department of Psychology, University of Lethbridge, Lethbridge, Alberta, Canada;4. Applied Behavioural Ecology and Ecosystems Research Unit, University of South Africa, Pretoria, Gauteng, South Africa;5. School of Anatomy, Physiology and Human Biology, University of Western Australia, Crawley, Perth, Australia;6. National Metrology Institute of South Africa, Pretoria, Gauteng, South Africa |
