[1] Liverpool John Moores Univ, Res Ctr Evolutionary Anthropol & Palaeoecol, Sch Biol & Earth Sci, Liverpool L3 AF3, Merseyside, England
[2] W Chester Univ, Dept Psychol, W Chester, PA 19380 USA
[3] Univ Leipzig, Leipzig, Germany
[4] Oxford Brookes Univ, Oxford OX3 0BP, England
[5] Wolfgang Kohler Primate Res Ctr, Max Planck Inst Evolutionary Anthropology, Leipzig, Germany
[6] McGill Univ, McGill Sch Environm, Montreal, PQ H3A 2T5, Canada
[7] Univ Massachusetts, Dartmouth, NS, Canada
[8] NYU, Ctr Study Human Origins, New York, NY 10003 USA
[9] Univ Oxford, Oxford OX1 2JD, England
[10] Univ Lethbridge, Lethbridge, AB T1K 3M4, Canada
[11] Michigan State Univ, E Lansing, MI 48824 USA
[12] Bournemouth Univ, Poole BH12 5BB, Dorset, England
[13] Univ Durham, Durham DH1 3HP, England
[14] Univ Roehampton, London SW15 5PU, England
[15] Univ Calif Los Angeles, Los Angeles, CA USA
[16] Inst Politecn Nacl, Mexico City 07738, DF, Mexico
[17] Univ Zurich, Anthropol Inst & Museum, CH-8006 Zurich, Switzerland