Competition evolutionary history promiscuity sperm

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Promiscuity is a wonderfully fresh account--equally invaluable for students of evolutionary biology and ribald after-dinner speakersRichard Wrangham, Peabody Museum, Harvard University A delightfully written and fascinating tour of the mysterious world of sperm competition and sexual brieremond.xyzs: 8.

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Promiscuity: An Evolutionary History of Sperm Competition "It is a curious paradox that reproductive biologists, so obsessed with the mechanics of reproduction, have rarely considered why so much variation exists in the copulation frequency of different species.


Prolonged evolutionary history of intense sperm competition/selection under external fertilization preceded the rise of advanced mobility, which generated pre-ejaculatory sexual selection. Promiscuity: An Evolutionary History of Sperm Competition. Females, it has become clear, are remarkably promiscuous and have evolved an astonishing array of strategies, employed both before and after copulation, to determine exactly who will father their offspring. Tim Birkhead reveals a wonderful world in which males and females vie 5/5(1).
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May 02, · I learned surprising and fascinating pieces of information about animals and their mating patterns – including sperm competition. I did, however, take issues with a few concepts and passages in the book. The author, Tim Birkhead, seemed to dislike feminist based on his word choice when mentioning them in Promiscuity/5.

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Download Citation on ResearchGate | On Aug 1, , D. N. Nettleship and others published Promiscuity: An Evolutionary History of Sperm Competition. Promiscuity: An Evolutionary History of Sperm Competition by Tim Birkhead. Males are promiscuous and ferociously competitive. Females—both human and of other species—are naturally monogamous. That at least is what the study of sexual behavior after Darwin assumed, perhaps because it was written by men.

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Promiscuity is a tour of animal sexuality, exploring the effects of sperm competition and sex-based selective pressures on reproductive biology and behaviour. Birkhead begins with the history of sperm competition studies, from Darwin's work on sexual selection to Robert Trivers' work on parental investment and Geoff Parker's role as "the father of sperm competition". Lucidly written and lavishly illustrated, with a wealth of fascinating detail and vivid examples, Promiscuity is the ultimate guide to the battle of the sexes. () () Promiscuity: An Evolutionary History of Sperm Competition Reviews.

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If you still subscribe to the Darwinian notion of sexual competition, which holds that only males are promiscuous by nature while females lean toward monogamy, then you are woefully behind the advances in the field of sexual physiology and selection, Birkhead believes. Sperm competition is the inevitable consequence of males competing for fertilizations. If females mate in a way that con- currently places sperm from two or more males in their repro- ductive tracts, this generates selection pressures on males.
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