The Evolutionary Biology of Human Female Sexuality

Author: Randy Thornhill
Publisher: Oxford University Press
ISBN: 9780199712489
Format: PDF, Docs
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Research conducted in the last fifteen years has placed in question many of the traditional conclusions scholars have formed about human female sexuality. Though conventional wisdom asserts that women's estrus has been evolutionarily lost, Randy Thornhill and Steven W. Gangestad assert that it is present, though concealed. Women, they propose, therefore exhibit two sexualities each ovulatory cycle-estrus and sexuality outside of the estrous phase, extended sexuality-that possess distinct functions. Synthesizing research in behavioral evolution and comparative biology, the authors provide a new theoretical framework for understanding the evolution of human female sexuality, one that is rooted in female sexuality and phylogeny across all vertebrate animals.

The Evolutionary Biology of Human Female Sexuality

Author: Randy Thornhill
Publisher: Oxford University Press
ISBN: 0195340981
Format: PDF, Kindle
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Research conducted over the last fifteen years has placed in question many of the traditional conclusions about the evolution of human female sexuality. Women have not lost estrus, as earlier researchers thought, but it is simply concealed, resulting in two functionally distinct sexualitieswith markedly different ends in each phase. At the fertile phase of the cycle, women prefer male traits that may mark superior genetic quality, and at infertile phases, they prefer men willing to invest resources in a mate. Thus, women's peri-ovulatory sexuality functions to obtain a sire ofsuperior genetic quality, and is homologous with estrus in other vertebrates. This model sheds light on male human sexuality as well: men perceive and respond to women's estrus, including by increased mate guarding. Men's response is limited, compared to other vertebrate males, implyingcoevolutionary history of selection on females to conceal estrus from men and selection on men to detect it. Research indicates that women's concealed estrus is an adaptation to copulate conditionally with men other than the pair-bond partner.Women's sexual ornaments-the estrogen-facilitatedfeatures of face and body-are honest signals of individual quality pertaining to future reproductive value.

The Evolutionary Biology of Human Female Sexuality

Author: Randy Thornhill
Publisher: Oxford University Press on Demand
ISBN: 9780195340983
Format: PDF
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Research conducted over the last fifteen years has placed in question many of the traditional conclusions about the evolution of human female sexuality. Women have not lost estrus, as earlier researchers thought, but it is simply concealed, resulting in two functionally distinct sexualitieswith markedly different ends in each phase. At the fertile phase of the cycle, women prefer male traits that may mark superior genetic quality, and at infertile phases, they prefer men willing to invest resources in a mate. Thus, women's peri-ovulatory sexuality functions to obtain a sire ofsuperior genetic quality, and is homologous with estrus in other vertebrates. This model sheds light on male human sexuality as well: men perceive and respond to women's estrus, including by increased mate guarding. Men's response is limited, compared to other vertebrate males, implyingcoevolutionary history of selection on females to conceal estrus from men and selection on men to detect it. Research indicates that women's concealed estrus is an adaptation to copulate conditionally with men other than the pair-bond partner.Women's sexual ornaments-the estrogen-facilitatedfeatures of face and body-are honest signals of individual quality pertaining to future reproductive value.

The Evolution of Human Sexuality

Author: Donald Symons
Publisher: Oxford University Press
ISBN: 0199878471
Format: PDF, ePub, Docs
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Anthropology, Sexual Studies, Psychology, Sociology, Gender and Cultural Studies

A Natural History of Rape

Author: Randy Thornhill
Publisher: MIT Press
ISBN: 9780262700832
Format: PDF, Docs
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A biologist and an anthropologist use evolutionary biology to explain the causes and inform the prevention of rape.

Evolution and Human Sexual Behavior

Author: Peter B. Gray
Publisher: Harvard University Press
ISBN: 0674074394
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A comprehensive survey of the evolutionary science of human sexual behavior, Evolution and Human Sexual Behavior invites us to imagine human sex from the vantage point of our primate cousins, in order to underscore the role of evolution in shaping all that happens, biologically and behaviorally, when romantic passions are aroused.

Sex Time and Power

Author: Leonard Shlain
Publisher: Penguin
ISBN: 1101200391
Format: PDF, ePub, Mobi
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As in the bestselling The Alphabet Versus the Goddess, Leonard Shlain’s provocative new book promises to change the way readers view themselves and where they came from. Sex, Time, and Power offers a tantalizing answer to an age-old question: Why did big-brained Homo sapiens suddenly emerge some 150,000 years ago? The key, according to Shlain, is female sexuality. Drawing on an awesome breadth of research, he shows how, long ago, the narrowness of the newly bipedal human female’s pelvis and the increasing size of infants’ heads precipitated a crisis for the species. Natural selection allowed for the adaptation of the human female to this environmental stress by reconfiguring her hormonal cycles, entraining them with the periodicity of the moon. The results, however, did much more than ensure our existence; they imbued women with the concept of time, and gave them control over sex—a power that males sought to reclaim. And the possibility of achieving immortality through heirs drove men to construct patriarchal cultures that went on to dominate so much of human history. From the nature of courtship to the evolution of language, Shlain’s brilliant and wide-ranging exploration stimulates new thinking about very old matters.

Handbook of the Evolution of Human Sexuality

Author: Michael R. Kauth
Publisher: Routledge
ISBN: 1136455191
Format: PDF, Kindle
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Expand your knowledge—with theories and concepts that may challenge your assumptions about sexual attraction Human sexuality can be better understood by knowing how sexual psychologies may have evolved throughout the ages. Handbook of the Evolution of Human Sexuality presents a detailed examination of human sexuality, the assumptions about concepts and terms pertaining to sexuality, and the latest theories on the evolution of human sexual attraction. Leading experts explore various aspects of evolutionary theory, with a focus on Evolutionary Psychology (EP). Discussions include mate preferences, mating behavior, mate signaling, pheromones, and same-sex attraction. This comprehensive source also presents three groundbreaking theories of the evolution of same-sex attraction. Handbook of the Evolution of Human Sexuality takes current assumptions about human sexuality, explains each in turn, and then offers fresh perspectives on conventional concepts of sexual orientation. This extensive resource provides ample evidence to argue that researchers should investigate sexual relationships based on a person’s characteristics such as personal traits, complementary roles/status, sexual acts, or situational context rather than simply the sex of the partner. The book provides a discussion of evolutionary theory, evolution of human sexual culture, evolution of sexual pleasure, and detailed analysis of assumptions about sexual orientation. The text is carefully referenced. Some of the topics explored by Handbook of the Evolution of Human Sexuality include: links to non-human primate sexual behaviors and the emergence of human (sexual) nature EP research on consensual adult human sexual behaviors studies of evolved male and female mating strategies, mate preferences, and sexual psychologies a brief history of the theory of evolution ancient culture, archeology, and an overview of premodern human sexuality evolutionary history of sexual pleasure human mating strategies development of mate preferences sexual signals, such as distinctive physical features, material wealth, etc. theories of the evolution of same-sex sexual attraction and behavior Primatologist Paul Vasey’s observations of female Japanese macaques and their female-female sexual encounters—with an examination of human male-male behavior evolutionary history of female-female affectional bonding with a new theory on the behavior evolutionary history of male-male sexual behavior—with intriguing thoughts on why it happened evolutionary history of pheromones as chemical messengers much more Handbook of the Evolution of Human Sexuality is an important, thought-provoking resource perfect for evolutionary psychologists, sexologists, educators, researchers, scholars, and graduate students.

The Case of the Female Orgasm

Author: Elisabeth Anne Lloyd
Publisher: Harvard University Press
ISBN: 9780674040304
Format: PDF, Docs
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Why women evolved to have orgasms--when most of their primate relatives don't--is a persistent mystery among evolutionary biologists. In pursuing this mystery, Elisabeth Lloyd arrives at another: How could anything as inadequate as the evolutionary explanations of the female orgasm have passed muster as science? A judicious and revealing look at all twenty evolutionary accounts of the trait of human female orgasm, Lloyd's book is at the same time a case study of how certain biases steer science astray. Over the past fifteen years, the effect of sexist or male-centered approaches to science has been hotly debated. Drawing especially on data from nonhuman primates and human sexology over eighty years, Lloyd shows what damage such bias does in the study of female orgasm. She also exposes a second pernicious form of bias that permeates the literature on female orgasms: a bias toward adaptationism. Here Lloyd's critique comes alive, demonstrating how most of the evolutionary accounts either are in conflict with, or lack, certain types of evidence necessary to make their cases--how they simply assume that female orgasm must exist because it helped females in the past reproduce. As she weighs the evidence, Lloyd takes on nearly everyone who has written on the subject: evolutionists, animal behaviorists, and feminists alike. Her clearly and cogently written book is at once a convincing case study of bias in science and a sweeping summary and analysis of what is known about the evolution of the intriguing trait of female orgasm.