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:
“When human beings have been fascinated by the contemplation of their own hearts, the more intricate biological pattern of the female has become a model for the artist, the mystic, and the saint. When mankind turns instead to what can be done, altered, built, invented, in the outer world, all natural properties of men, animals, or metals become handicaps to be altered rather than clues to be followed.”
—Margaret Mead (1901–1978)
“When there is a choice about it, a great sacrifice is preferable to a small sacrifice, because we compensate ourselves for a great one with self-admiration, which is not possible with a small one.”
—Friedrich Nietzsche (1844–1900)
“For a boy to reach adulthood feeling that he knows his father, his father must allow his emotions to be visible—hardly an easy task when most males grow up being either subtly or openly taught that this is not acceptable behavior. A father must teach his son that masculinity and feelings can go hand in hand.”
—Kyle D. Pruett (20th century)
“Women of my age in America are at the mercy of two powerful and antagonistic traditions. The first is the ultradomestic fifties with its powerful cult of motherhood; the other is the strident feminism of the seventies with its attempt to clone the male competitive model.... Only in America are these ideologies pushed to extremes.”
—Sylvia Ann Hewitt (20th century)