图片来源
第12章：J.Beckett/K.Perkins，American Museum of Natural History Negative 2A17202；The Metropolitan Museum of Art，Rogers Fund，1930（30.3.31）Image © The Metropolitan Museum of Art
第13章：Heraklion Archaeological Museum—Hellenic Ministry of Culture &Sports—Archaeological Receipts Fund
插图1：Irven DeVore，Anthro-Photo
插图2～5：Courtesy of the author
插图6：P.McLanahan，American Museum of Natural History.Negative 337549
插图7：Richard Gould，American Museum of Natural History.Negative 332911
插图8：Penny Tweedie/Alamy Stock Photo
插图10：Bogoras，American Museum of Natural History.Negative 2975
插图11：AP Photo/Shizuo Kambayashi
插图12：Judith Ferster，Anthro-Photo
插图13：R.H.Beck，American Museum of Natural History.Negative 107814
插图14：Dan Hrdy，Anthro-Photo
插图15：Rodman Wanamaker，American Museum of Natural History.Negative 316824
插图16：Marjorie Shostak，Anthro-Photo
插图17：Boris Malkin，Anthro-Photo.
插图18：Napoleon Chagnon，Anthro-Photo
插图19：Kirschner，American Museum of Natural History.Negative 235230
插图20：Jason Rothe/Alamy Stock Photo
插图21：Gladstone，Anthro-Photo
插图22：AP Photo/Jean-Jacques Levy
插图23：Above，AP Photo.Below，W.B.，American Museum of Natural History.Negative 2A13829
插图24：AP Photo/Boris Yurchenko
插图25：Marjorie Shostak，Anthro-Photo
插图26：Irven DeVore，Anthro-Photo
插图27：Steve Winn，Anthro-Photo
插图28：J.B.Thorpe，American Museum of Natural History.Negative 336181
插图29和插图31：J.F.E.Bloss，Anthro-Photo
插图30：AP Photo/Denis Paquin
插图32：AP Photo/Sarah Fawcett