d*******2
发帖数: 3045 | 1 Researchers Describe A New Hypothesis About Why The Female Orgasm Exists
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August 1, 20169:15 PM ET
REBECCA HERSHER
Depiction of female reproductive organs during ovulation.i
Depiction of female reproductive organs during ovulation.
BSIP/UIG via Getty Images
A pair of scientists have a new hypothesis about why the female orgasm
exists: It might have something to do with releasing an egg to be fertilized.
Scientists have puzzled over, and sometimes even questioned the existence of
, a phenomenon that appears to have no physical effect on conception. While
a male orgasm is crucial to impregnate a female, it is not obvious how a
female orgasm affects whether she is impregnated.
In fact, Aristotle and Hippocrates both pointed out the female orgasm
appears to be an afterthought, at least when it comes to creating offspring.
The theory would explain the modern reality that women do not experience
orgasms as easily or as regularly as men.
Maria Fabrizio for NPR
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But, until now, no hypothesis looked to the biology of distant human mammal
relatives, even older than primates, for clues about the orgasms of modern
women. In a paper published Sunday in the Journal of Experimental Zoology,
Mihaela Pavlicev of the University of Cincinnati and Gunter Wagner of Yale
University describe how, over millions of years, evolutionary history
suggests reproduction could help explain the female orgasm after all.
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installment of Discovery's series Curiosity.
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If you think of an orgasm as consisting of three parts — a wave of hormones
, intense pleasure and muscle contractions — it's possible to see
similarities between a human orgasm and phenomena in other mammal species.
The authors are particularly interested in mammals who ovulate in response
to copulation.
In some such animals, they point out, the only way to trigger the ovary to
release an egg is by stimulating the clitoris and producing a wave of
hormones released from the pituitary gland. That's how it works, for example
, in rabbits and cats.
If you walk those two phenomena forward in evolutionary time, you get a
female orgasm that relies on clitoral stimulation and includes a hormone
release, even though female humans have since evolved to ovulate every month
, whether or not a male is around.
In fact, the authors suggest it is that change in ovulation frequency that
allowed female anatomy to change over the millennia; as the clitoris was no
longer strictly necessary to release an egg, it moved farther from the
vagina.
But the new theory is unlikely to unite the diverse group of people who
study the female orgasm. Some believe the aspects of anatomy that allow the
female orgasm are a byproduct of fetal development before male and female
characteristics develop.
The philosopher Elisabeth Lloyd of Indiana University wrote a book called
The Case of the Female Orgasm, in which she discussed more than a dozen
theories about its origin.
Lloyd thinks the female orgasm serves no evolutionary purpose — that the
orgasm is to women what nipples are to men.
But Lloyd says she sees similarities between her theory and the latest paper
, which articulates new evidence "that the modern orgasm is byproduct, and
not a modern adaptation."
"In their case it is a byproduct of ancient ovulation rather than a
byproduct of the male orgasm," she tells NPR, "but we agree that, today, the
female orgasm doesn't contribute to fitness. There's no difference in the
number of children a woman will have, whether she has an orgasm or not." | c****3
发帖数: 10787 | 2 这么一目了然的事情，套到进化论里面就傻了，可见进化论有多可笑。
人是有意识的，能主动控制自己行为，性行为没有趣味，繁殖下一代必然减少。所以男
性女性都要有高潮才行。
动物是靠本能驱动下一代繁殖，有发情之类的行为。 | l******t
发帖数: 55733 | 3 进化论太nb了。系统进化到你根本不需要知道你的目的是什么，只要follow heart，做
爱做的事，其他一切都早已进化妥当。 | j******z
发帖数: 3028 | | h**r
发帖数: 614 | 5 这不胡扯吗？
排卵一月一次， 高潮可以天天有。
【在 d*******2 的大作中提到】
: Researchers Describe A New Hypothesis About Why The Female Orgasm Exists
: Facebook
: Twitter
: Google+
: Email
: August 1, 20169:15 PM ET
: REBECCA HERSHER
: Depiction of female reproductive organs during ovulation.i
: Depiction of female reproductive organs during ovulation.
: BSIP/UIG via Getty Images
| x****6
发帖数: 4339 | 6 这是进化生物学里最扯的那部分：目的论，自圆其说！ | m**c
发帖数: 7349 | | L******d
发帖数: 2461 | 8 宁可错杀，不可漏杀，浪费些高潮不算什么吧，这和进化论不矛盾。
【在 h**r 的大作中提到】
: 这不胡扯吗？
: 排卵一月一次， 高潮可以天天有。
| y****g
发帖数: 36950 | | c****i
发帖数: 7933 | 10 科學就是個婊子，NPR顯然被婊子玩的一愣一愣的。
文科傻逼真多。 | s*****r
发帖数: 11545 | 11 Elaine says: fake, fake, fake.
【在 h**r 的大作中提到】
: 这不胡扯吗？
: 排卵一月一次， 高潮可以天天有。
| h*h
发帖数: 27852 | 12 女性没有高潮不等于没有快感
你反进化论走火入魔了
【在 c****3 的大作中提到】
: 这么一目了然的事情，套到进化论里面就傻了，可见进化论有多可笑。
: 人是有意识的，能主动控制自己行为，性行为没有趣味，繁殖下一代必然减少。所以男
: 性女性都要有高潮才行。
: 动物是靠本能驱动下一代繁殖，有发情之类的行为。
| s**********d
发帖数: 36899 | 13 是啊，误入歧途的进化论，认为生物进化是完美的，任何生物表征都是理想状态。
【在 x****6 的大作中提到】
: 这是进化生物学里最扯的那部分：目的论，自圆其说！
| c****3
发帖数: 10787 | 14 是相信进化论的走火入魔了，本来根本不是问题
没有高潮驱使，人类靠啥驱动繁衍后代，人是可以控制自己冲动的，就这样日本生育率
还下降。
动物靠本能，没法控制发情的驱使。
这么解释最符合逻辑，结果套了进化论，反而变成问题了。符合逻辑的，变成不符合进
化论了。
【在 h*h 的大作中提到】
: 女性没有高潮不等于没有快感
: 你反进化论走火入魔了
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