Affiliation: | ∗ Cognitive Evolution Group, University of Louisiana, Lafayette, LA, U.S.A. † University of Southern Mississippi Gulf Coast, Long Beach, MS, U.S.A. ‡ Department of Anthropology, Emory University, Atlanta, GA, U.S.A. § Michale Keeling Center for Comparative Medicine and Research, University of Texas M.D. Anderson Cancer Center, Bastrop, TX, U.S.A. ∗∗ Department of Psychology, Georgia State University, Atlanta, GA, U.S.A. †† Department of Anthropology, University of California, Los Angeles, CA, U.S.A. ‡‡ Department of Psychology, Economics, University of British Columbia, Vancouver BC, Canada |