Во второй главе использованы материалы, взятые из неопубликованной книги "Тринил. Биография профессора Эжена Дюбуа, открывшего питекантропа прямоходящего", написанной сыном Дюбуа, Жаном М. Ф. Дюбуа, и любезно предоставленной издательству "Time-Life Books" Аннет Е. Кармин и Жаном М. Ф. Дюбуа, потомками знаменитого ученого, нашедшего истинных людей.

Редакторы выражают благодарность за помощь в приготовлении этой книги: К. С. Chang, Chairman, Department of Anthropology, Yale University; Edmund S. Crelin, Professor of Anatomy and Human Development, Yale University School of Medicine; Garniss H. Curtis. Professor of Geology, University of California at Berkeley; Henry de Lumley. Director of Research at the National Center of Scientific Research, Marseille; Irven DeVore, Professor of Anthropology, Harvard University; Rhodes W. Fairbridge, Professor of Geology, Columbia University; Leslie G. Freeman Jr., Associate Professor of Anthropology, University of Chicago; Norman Geschwind, James Jackson Putnam Professor of Neurology at Harvard University Medical School; F. Clark Howell, Professor of Anthropology. University of California, Berkeley; Glynn LI. Isaac, Associate Professor of Anthropology, University of California at Berkeley; Clifford H. Jolly, Associate Professor of Anthropology, New York University; Saran Jonas, New York University Medical Center; Richard B. Lee, Associate Professor of Anthropology, Universfty of Toronto; Philip Lieberman, Professor of Linguistics, University of Connecticut; Alan Mann. Assistant Professor of Anthropology, University of Pennsylvania; William Montagna, Professor of Dermatology at the University of Oregon Medical School; Ian Tattersall, Assistant Curator of Physical Anthropology, Department of Anthropology. American Museum of Natural History; Robert L. Trivers, Harvard University.