Female Choice For Males With Competitive Sperm
Female factors can influence the result of sperm competition through a process known as "sperm choice". Proteins present in the female reproductive tract or on the surface of the ovum may influence which sperm succeeds in fertilizing the egg. During sperm choice females are able to discriminate and differentially use the sperm from different males. One instance where this is known to occur is inbreeding; females will preferentially use the sperm from a more distantly related male than a close relative.
Read more about this topic: Sperm Competition
Famous quotes containing the words female, choice, males and/or competitive:
“I am about courting a girl I have had but little acquaintance with. How shall I come to a knowledge of her faults, and whether she has the virtues I imagine she has?
Answer. Commend her among her female acquaintances.”
—Benjamin Franklin (17061790)
“The fondness or indifference that the philosophers expressed for life was merely a preference inspired by their self-love, and will no more bear reasoning upon than the relish of the palate or the choice of colors.”
—François, Duc De La Rochefoucauld (16131680)
“If combat means living in a ditch, females have biological problems staying in a ditch for 30 days because they get infections.... Males are biologically driven to go out and hunt giraffes.”
—Newt Gingrich (b. 1943)
“The shift from the perception of the child as innocent to the perception of the child as competent has greatly increased the demands on contemporary children for maturity, for participating in competitive sports, for early academic achievement, and for protecting themselves against adults who might do them harm. While children might be able to cope with any one of those demands taken singly, taken together they often exceed childrens adaptive capacity.”
—David Elkind (20th century)