The team found no excess casualties from any particular donor or other evidence of warring sperm, they report in the 7 December Proceedings of the Royal Society. To learn more about Amazon Sponsored Products, click here. Amazon Drive Cloud storage from Amazon. Set up a giveaway. The Evolution of Desire: Although studies show that by the age of 40 years bisexuals have fewer children than heterosexuals,   he maintains that at low levels in the population bisexuality is still an evolutionary advantage since the children are typically conceived earlier in life; by age 20 years bisexuals have four times the reproductive success of heterosexuals, and by age 25 twice the success. By Jocelyn Kaiser Sep.
Sperm Wars: controversies and science
As an honorary member of the B vitamin family, inositol plays an important role in the health of cellular membranes as a component of the phospholipid layer. Despite Baker asserting that the two behaviours are at different illegal and legal ends of that spectrum, his statement that the drawing of the line between criminal and non-criminal behaviour is a job for the legal profession and not for the biologist has led some to interpret his words as meaning that he sees no real difference between the two: The book's weakness is that alternative interpretations are not discussed eg the high incidence of particularly male homosexuality on certain South Sea islands is attributed to an absence of STDs. The only redeeming thing I can say about this book is that I feel amazed and dumbfounded he is an actual biologist, and that he is so much into his fetish that he writes books about it, claiming it is real science, and outright lies in the process. I really was amazed to read it all explained and laid out like this so completely Another example is Gordon Gallup's "sperm displacement theory", that states that the shape of the human penis has evolved in order to remove the sperm of other men from a woman's vagina during intercourse.
Sperm Wars: Infidelity, Sexual Conflict, and Other Bedroom Battles by Robin Baker
Sperm competition is exciting, reminding a man that his woman is worth fighting for, making his erection fighting hard. If you doubt the authenticity of the text, then check out the myriad of Robin Baker's publications in peer-reviewed journals that back up his claims. What they seem to consistently miss, however, is that our views on social conduct and our sense of right from wrong is a remarkably recent cognitive development when viewed on an evolutionary timescale. While many of the phenomena he discusses, such as the widely varied orgasmic patterns observed among females compared to the highly predixtible patterns seen among males, can be convincingly attributed to biological causes, others, such as the various cross-cultural taboos against masturbation, take a bit of rhetorical stretching before a biological view can be even half-way convincingly applied to them. The Bad Not much.
Description: The desire for what makes us human has developed over several millennia, whereas biological urges have controlled us for millions of years. After reading it and reflecting July Learn how and when to remove this template message. Only this time, why don't you put this hand here, or maybe even here, and the other one there? This is the worst pseudo-scientific book I have read since The Naked Ape.