there is a perceived or known increase in sperm competition risk. Sperm competition is not exclusive to humans, and has been studied extensively in other...

Sperm competition is the competitive process between spermatozoa of two or more different males to fertilize the same egg during sexual reproduction....

reproductive success and minimise sperm competition. Sperm competition has caused the human penis to evolve in length and size for sperm retention and displacement...

Sperm Wars is a popular science book by evolutionary biologist Robin Baker about sperm competition. Originally published in English in 1996, it has since...

types in the adult human body Female sperm Female sperm storage Mendelian inheritance Polyspermy Sperm competition Sperm granuloma Sperm theft "Spermatium...

a Sperm Competition Strategy in Humans]". Evolutionary Psychology. 2 (5): 12–23. doi:10.1177/147470490400200105. Dean, Dr. John. "Semen and sperm quality"...

humiliation Female dominance Female promiscuity Feminization (activity) Human sperm competition Kuckuckskind Monogamish Netorare Non-paternity event Open marriage...

München. Baker, Robin R.; Bellis, Mark A. (November 1993). "Human sperm competition: Ejaculate adjustment by males and the function of masturbation"...

increase the likelihood of success of their own sperm fertilizing the eggs of females when competition is involved. Mate guarding behaviour can be pre-...

W.; Firman, R.E.C.; Rhodes, G.; Peters, M. (2004). "Human sperm competition: testis size, sperm production and rates of extrapair copulations". Animal...