Foreword : random thoughts on teaching human variation, past and present / Phillip V. Tobias -- Human variation : the major unifying theme of biological anthropology / Darren Curno -- Racial identification of single skulls in forensic cases : when myth becomes reality / Alan G. Morris -- Human variation is not easy to understand : thirty years of teaching biological anthropology at four continents / Maciej Henneberg -- Race and geographic variation conflated : an impediment to teaching human biology / Rachel Caspari -- An in-class exercise on human variation / Patricia C. Rice -- Challenging university students' concepts about race / Pamela Ashmore and Donna Hart -- Bad old days or anthropology revisited : teaching human variation through the portal of the experimental history of science / Goran Štrkalj -- Should human variation be taught to medical students? / A. Tracey Wilkinson, Goran Strkalj and Muhammad A. Spocter -- Human variation : how to counteract the new waves of racism? / Charles Susanne