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EPub Edition © SEPTEMBER 2010 ISBN: 978-0-062-00293-8
FIRST EDITION
Library of Congress Cataloging-in-Publication Data
Ryan, Christopher Sex at dawn: the prehistoric origins of modern sexuality/ Christopher Ryan and Cacilda Jetha.—1st ed. p. cm.
Summary: “A controversial, idea-driven book that
challenges everything you know about sex, marriage, family, and society.”—Provided by publisher
Includes bibliographical references and index.
ISBN 978-0-06-170780-3 (hardback)
1. Sex. 2. Sex—History. 3. Sex customs. 4. Marriage. I. Jetha, Cacilda. II. Title.
HQ12.R93 2010 306.7—dc22
2009045457
10 11 12 13 14 OV/RRD 10 987654321
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Please visit sexatdawn.com for the latest news, further discussion, and updates on the issues raised in this book, or to contact the authors.
1. Maybe as recently as 4.5 million years ago. For a recent review of the genetic evidence, see Siepel (2009).
2. de Waal (1998), p. 5.
3. Some of these numbers are reported in McNeil et al. (2006) and Yoder et al. (2005). The hundred billion figure comes from http://www.latimes.com/news/nationworld/nation/
la-fg-vienna-porn25-2009mar25,0,7189584.story.4. See “Yes, dear. Tonight again.” Ralph Gardner, Jr.
5. Full disclosure: Murdoch also owns HarperCollins, the publisher of this book.
6. Diamond (1987).
7. Such relationships would have been among many group-identity-boosting techniques, including participation in group bonding rituals still common to shamanistic religions characteristic of foraging people. Interestingly, such collective-identity-affirming rituals are often accompanied by music (which—like orgasm—releases oxytocin, the hormone most associated with forming emotional bonds). See Levitin (2009) for more on music and social identity.
8. The precise timing of this shift has recently been called into question. See White and Lovejoy (2009).
9. For more on the sharing-based economies of foragers, see
Sahlins (1972), Hawkes (1993), Gowdy (1998), Boehm
(1999), or Michael Finkel’s
10. Mithen (2007), p. 705.
11. Taylor (1996), pp. 142-143. Taylor’s book is an excellent archaeological account of human sexual origins.
1. This account comes from Todorov (1984), but Todorov’s version of events is not universally accepted. See http://www.yucatantoday.com/culture/esp-yucatan-name.htm
, for example, for a review of other etymologies (in Spanish).2. From the FDA’s Macroanalytical Procedures Manual—Spice Methods. Accessed online at: http://www.fda.gov/Food/ScienceResearch/
LaboratoryMethods/MacroanalyticalProceduresManualMPM/ucm084394.htm.
1. Originally published in
be found here: http://www.redorbit.com/news/science/