Competition copulation human infidelity masturbation sperm

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Baker and bellis may not be always right, but it is a hell of a good story. - heredity human sperm competition copulation, masturbation and infidelity. Opens up a previously unexplored area of research in human sexuality. The result is something remarkable - a genuinely new book about sex. Baker and bellis may not be always right, but it is a hell of a good story. - heredity human sperm competition copulation, masturbation and infidelity. Opens up a previously unexplored area of research in human sexuality. The result is something remarkable - a genuinely new book about sex. Human sperm competition copulation, masturbation, and infidelity r. In the first half of the book the authors explore the role of sperm competition in the evolution of human sexual characteristics, considering for example the architecture of the female reproductive tract, the reasons for male and female infidelity and the possible biological reasons for homosexuality, masturbation and orgasm. Isbn 0412454300 9780412454301 oclc number 31931158 description xvi, 353 pages illustrations contents sex, coyness and promiscuity the evolution of sperm competition --legacies from the age of reptiles copulation, flowback and the female orgasm --mammalian inheritance maternal care, family planning and sperm polymorphism --mammalian inheritance masturbation, homosexuality and. Get download robin baker - human sperm competition copulation, masturbation and infidelity ,behavioural ecologists and evolutionary biologists. In the first half of the book the authors explore the role of sperm competition in the evolution of human sexual characteristics, considering for example the architecture of the female reproductive tract, the reasons for male and female infidelity and the possible biological reasons for homosexuality, masturbation and orgasm. So too does the womans retention of sperm as determined by her orgasm pattern. Direct evidence is presented that men with larger testes and more symmetrical men are more likely to become involved in sperm competition. Both also inseminate women with more sperm during copulation and shed more sperm during masturbation. Human sperm competition copulation, masturbation and infidelity by robin baker quantity add to cart category self - help tags copulation , course available , human sperm competition , masturbation and infidelity , robin baker.

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