I commented two hypotheses of why women choose the father of her children from a few candidates.
I will raise two hypotheses as unprovable as the theories on the origin of cancer or the existence of God.
Let me pose less known that those beliefs do not detract but some popularity.
Women do not have children with anyone, are precise, careful, massively exclusive. Discriminate furiously to most men.
By contrast, men are generalists, tolerant, wide scope, ecumenical, inclusive massively. If anything we care where our semen is deposited for cultural, legal, economic. If not for these limitations would have sex with any woman who barely hinted fertilizer interested in our presence.
I wonder what criteria we selected women so strictly? Why choose between so few men to be father of her children?
Hypothesis 1: They have a sixth sense in which "know" what male has the best specimens genetic endowment gestate when combined with the genetic endowment of it.
This hypothesis seems logical, especially for anyone familiar manifestations of that sixth sense transcendent things.
With that capacity above normal (sixth sense), may not realize that the husband makes a double life because it is not as important as the genetic makeup of their children.
Hypothesis 2: They dream of their future children. "They see ', not only before but before conceiving parirlos.
As a side fact, note that the verb "to conceive" both meaning "pregnant" as "form idea to concept of something."
Just as in dreams "we see people" are actually unknown condensing the traits of several people, they dream of possessing wonderful children and parent traits chosen.
Note: Original in Spanish (without translation by Google): La rigurosa elección del futuro padre.
(Este es el Artículo Nº 1.919)