Evolution is a brutal process which only allows the strongest and the fittest to survive. The subtle signs of this natural selection theory are seen in the complexities of human mating and sexual behaviour, where women are shown to chose specific partners that are genetically suited to producing a fit offspring with more chances of survival. Various theories exist about how a woman or a man chooses the right partner. And even after that, the process of fertilization weeds out the unfit sperms before finding the right sperm cell for fertilisation. The process of fertilisation is often considered to be an olympian race where the sperm that reaches the egg first is the one that fertilises it. In recent research though, a group of researchers at the Stockholm University, Manchester University NHS Foundation Trust and The University of Manchester said that a woman’s egg might reject the sperm of her chosen partner. Explaining the findings of the study, Dr John Fitzpatrick, an Ass...
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