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.
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Famous quotes containing the words female, choice, males and/or competitive:
“In life, then, no new thing has ever arisen, or can arise, save out of the impulse of the male upon the female, the female upon the male. The interaction of the male and female spirit begot the wheel, the plough, and the first utterance that was made on the face of the earth.”
—D.H. (David Herbert)
“Every day care center, whether it knows it or not, is a school. The choice is never between custodial care and education. The choice is between unplanned and planned education, between conscious and unconscious education, between bad education and good education.”
—James L. Hymes, Jr. (20th century)
“Three times a year all your males shall appear before the LORD your God at the place that he will choose: at the festival of unleavened bread, at the festival of weeks, and at the festival of booths. They shall not appear before the LORD empty-handed; all shall give as they are able, according to the blessing of the LORD your God that he has given you.”
—Bible: Hebrew, Deuteronomy 16:16,17.
“How deep is our desire to do better than our mothers—to bring daughters into adulthood strong and fierce yet loving and gentle, adventurous and competitive but still nurturing and friendly, sweet yet sharp. We know as working women that we can’t quite have it all, but that hasn’t stopped us from wanting it all for them.”
—Anne Roiphe (20th century)