Comment author:whpearson
20 May 2010 07:20:54AM
*
1 point
[-]
Why?
Differential investment in offspring due to biology. Women risk 9 months of labour when having sex and then have to wean the baby. Men aren't forced to be around during this and can ditch and rely on the woman + family to raise the kid. This is called parental investment.
Comment author:Veronica
26 May 2010 08:01:39PM
1 point
[-]
This whole theory is predicated on pregnancy happening as the result of this mating behaviour. In other words it only works when no reliable form of contraception is available. In modern society it has broken down. also it does not explain how in "winter" wartime conditions there seems to be more promiscuity and babies born to unstable parental relationships.
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Differential investment in offspring due to biology. Women risk 9 months of labour when having sex and then have to wean the baby. Men aren't forced to be around during this and can ditch and rely on the woman + family to raise the kid. This is called parental investment.
This whole theory is predicated on pregnancy happening as the result of this mating behaviour. In other words it only works when no reliable form of contraception is available. In modern society it has broken down. also it does not explain how in "winter" wartime conditions there seems to be more promiscuity and babies born to unstable parental relationships.