五大怪异的性事实

译者 hbthlw

Sex is a weird thing, but no book I’ve read has exposed more of its complexity than How Sex Works by evolutionary neurologist Sharon Maolem. Below are a handful of the nuttiest facts I learned reading the book:

性是一种怪异的东西，但是我从未读过一本书比进化神经学家莎伦(Sharon Maolem)写的《性如何工作》揭露更多的性的复杂性。下边将介绍一小部分我从这本书上读来的古怪的gkpu

1) Oral sex is not a human thing

1、口交不只是人类做的事情

Macaques, cheetahs, hyenas and goats also perform oral sex–and, in many cases, swallow!

猕猴，猎豹，土狼和山羊同样也在多种情况下进行口交。

2) Porn isn’t a human thing, either

2、色情照片也不仅仅是人类做的事情

When offered the opportunity to pass up their fruit juice in exchange for images of female monkey behinds, rhesus monkeys at Duke University gave their prized drinks right up.

3) Looking at threesome porn helps a man produce better quality sperm

3、观看三人的色情照片可以帮助男人产生更高质量的精子

Studies have found that men tend to create better sperm when competition is high. And nothing says high competition quite like the sight of a lady getting it from two guys at once.

研究已经表明男人在好胜心强的时候趋向产生更好的精子。没有什么比看到同一个女士拥有两个家伙更能增强好胜心了。

4) The bigger the balls, the more promiscuous the female of your species

4、睾丸越大，本特种的雌越爱乱搞

The more sexually active the female of a species, the bigger the balls will be in the male. Female chimpanzees are very promiscuous, so the male chimpanzee has testicles ten times the size of those of gorillas, who largely enjoy monogamous relationships with their partners. Humans fall between the two. Why bigger testicles? To produce more sperm and increase the odds of being the one who impregnates the female.

在同一个物中，雌性在两性之间越活跃，雄性的睾丸越大。母黑猩猩非常喜欢乱搞，所以公猩猩的睾丸比其他一夫一妻制的大猩猩睾丸大十倍。人类界于这两者之间。为什么需要更大的睾丸呢？这是为了产生更多的精子，提高使雌性受孕的几率。

5) Bigger brains come at the expense of your balls

5、更大的大脑使睾丸受到损失

Scientists studying the correlation in size in some 300 species found that because large brains take a lot to develop and keep running, changes in brain size come at the expense of other costly tissues–that is, balls.

科学家在300个物种中进行大脑体积相互关系的研究，发现因为巨大的大脑会有很多的发展和保持运转，大脑体积的变化会带来其他宝贵组织的损失——就是睾丸。

(Photo By: Gary M Stultz)

照片提供：盖里(Gray M Stultz)