一个重要的理论是，男女对各自的选择要求与倾向的差别来源于人类进化的发展。

1. 男人对女人的要求:

a.年轻-理由:和年老者相比较，可生育的时间长。
b.美貌-理由:最大化的美貌带来了最大化生育和抚育能力，具体的例如社交能力，地位，生育机会，子孙的受抚育条件等要高于中等人群
c.强壮/健康-理由:不难理解，最大化子孙后代的数量，同时提高成活率

随着人类进化男性对生育的要求逐渐向最大化生产子孙后代发展，但男性对子孙后代的成活率要求要比女性低。举例来说，男性通常发现难以接受不能够生育的配偶，同时女性十分惧怕失去生育能力。

2. 女人对男人的要求:

a.金钱/地位-理由:足够的经济能力可以最大化子孙后代的成活率
b.貌美(更趋向于女性化的面孔)-理由:正因为女性本身的对抚育能力要求高的特点，女性希望她们的伴侣具有较高的抚育子孙后代的潜质。趋向与女性面孔的男性通常更有女人缘。

随着人类进化女性对生育的要求逐渐向最大化子孙后代的成活率发展，但女性对子孙后代的数量要求比男性要低。举例来说母亲通常和子女更加亲近，失去子女后母亲的挫败感(悲伤)要远远大於父亲的挫败感。

一些很有趣的现象，例如有貌美女性被一个连的男人追，而貌美的男性却永远不会有一个排的人追。这是因为女性有怀孕期，而男性没有。想像10个男子面对10个女子在同一个房间内，如果他们被强迫去生育子孙后代，那么在一定数量的女性怀孕后，全部10个男性仍然具有生育能力，而怀胎的女性暂时失去了生育能力。这样即使是在男女数量平等的情况下，女性仍然相对的属於少数人群。同时人类生育的子孙，不同性别的数量几乎相等，这样不难想像如果平衡如果被极端主义例如重男轻女打破，会产生可能的畸形社会形态，从而导致一系列的社会问题。

进化论不仅仅给我们带来了自然界探索道路的一把利刀，而且还解释了很多目前人类社会的各种现象。

下次你碰到你男朋友/丈夫在外面寻花问柳的时候，也许你会理解他们是在最大化子孙后代的数量呢

Well, the illustration is quite fathomed by evolution theory. It supposes the Sensory bases of navigation mates is also suitable to be depicted for male/female, that is, knowing both the bearing of their target and how to determine the direction with mutual magnetic effect or sometimes through special body odors. How to explain homosexual?

It's always difficult to either determine or describe how an interpersonal sensory works in which psychological process is taking an effect. I would like to keep balance in the way of arising such issues that how come individuals are always different - as I said the genetic proposition is only the one of the most important theories. Based on Albert Bandura's theory, the term social learning would also take into account when individual differences are considered. Such mutual magnetic effect that caused by special body odors or facial attraction may possibly be the results of experiencing/observation in the nurturing period rather than the pure genetic determination. However I would like to ask for a break here since all those theories need to be narrated clearly to produce understanding, and so do the non-native language. I personally assume that it would be better if we write in Chinese.

另外忘记提到的是，一个有趣的现象也支持了上面(进化论的)择偶观点: 人类有史以来女性的怀胎周期一直在缩短，同时有怀孕能力的年龄段也在向两边扩展。

值得注意的是，白种人女子在总体上被社会认可最具有吸引力的人群的同时，她们生产之后的恢复周期要比黑种人，黄种人短得多。

沉思ing

could u explain why many chinese girls are so ugly? or numbers of ugly girls are more than that of man?

QUOTE (liuxia @ 25 Jul 2003, 13:03)

could u explain why many chinese girls are so ugly? or numbers of ugly girls are more than that of man?

first off you have to refer to the concept of the facial attractiveness.

I believe that there must a strong nagetive correlation between facial 'ugly' and the ability of reproducing and nurturing. I haven't figure it out yet.

There is another point--i think, few people know the answer: Is the "beauty" of woman positively correlated to their sex ability and productivity?

QUOTE (liuxia @ 25 Jul 2003, 15:02)

There is another point--i think, few people know the answer: Is the "beauty" of woman positively correlated to their sex ability and productivity?

most ppl don't buy it but I wouldn't think it's wrong.

Alas 刚刚想起来比较重要的一个：

大胸脯女人更惹人喜爱

因为他们的哺育能力强，potentially.