Top of analysis point out, the family organizes of the birth is to come from men and women both parties to reasonably share what sexual behavior spreads out grows the demand of cost, therefore, the family essence is the men and women's both parties according to'the for oneself benefit others'the behavior mechanism carry on the outcome of cooperation.Male but speech, for acquiring sexual appetite of satisfy at the same time again make sure the sons and daughters that oneself brings up of'legitimacy', rather undertake the responsibility of construction family, provide safe place for female;Female but speech, for acquiring satisfying of sexual appetite and ensure to not only admit a load to allly grow cost, will voluntarily live the residence that provides in the male, be alongside of to be subjected to male square and its family as to it's behavioral dc hats direct.Just because of such, the family in earlier period has strong of paternal characteristic, particularly is at male outside female inside the division of labour of type enhance gradually but male square after controling production and life data, family of the paternal characteristic is particularly obvious.However, though the family organizes of the emergence promoted to grow sharing of cost, at the same time also check and supervision diversified sex need of men and women both parties;But even if existence fix of marital relationship to the stipulation of sex need and the sexual behavior, men and women both parties because of instinct of the impulse may also stir up the impulse that breaks the word, will injure the benefits of the other party thus.On the other hand, mightiness of occupancy desire and multiply greatly the tendency of gene to usually urge the male constantly pursues many females possibly, this kind of cuckoldry that the behavior visiting brothels obviously will endanger to form marriage deserves right:This not only the performance will be subjected to damage up amount and quality live in sex at the wife, because the wife be usually a family tie up but only husband's a sexual behavior object;At the same time also express in the children that the wife and it livings will be subjected to damage on the living standard, because the husband's other women and the kid that it gives birth to will divide to go to parts of properties.On the other hand, if the female evades fixed marital relationship and the tie of the family and red almond wall, will also result in the husband's loss:One, the female has because of being subjected to restriction of the amount of ovums and quality and it limited fertility, wife and others' having sexual behavior obviously will lower him to living the ability that buy sunglasses the son teaches a female for husband;Two, if the husband has no knowledge but brings up the children of wife and his life and then will suffer more great damage, because of generally speaking the male even don't wish to bring up the son whom the others livings.
In fact, the sexual appetite is the mankind's instinct sexual appetite to beg, not only the male has the need of diversified sexual behavior, in the female sexual instinct usually also BE'flower heart';Only at endless mankind in the middle of the society men and women because of'flower heart'but pay the price of is different, the representative of that female pays usually wants greatly and gets much.Generally, male of'flower heart'usually be just subjected to society and law check and supervision, but cuckoldry'flower heart'then not only accept more scathing society and law check and supervision;And, because of up to the present of society be still male strong female weak, as a result the bride's side breaks the word to also bear male square infliction of the other party control, while the bride's side exert to then want for those punishments that break the word a male square small get many.
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