Evolutionary biologists have struggled to explain how pair bonding and the nuclear family structure took root in humans, as primate groups typically establish dominance-driven hierarchies that restrict mating privileges to a few high-ranking males.…Using simple mathematical models, Sergey Gavrilets revealed that the most commonly proposed theories for human pair bonding are biologically unrealistic.
Then, incorporating among other factors the evolution of female choice and faithfulness, the researcher devised a model showing how pair bonding can represent a key adaptation underscoring the uniqueness of human evolution.
Furthermore, social dominance is not conferred by women, it’s awarded by other men in a process of intrasexual competition for dominance and leadership.
Men continually compete for dominance in social interactions with one another.
The men who achieve the greatest rank among their peers may then display that dominance as a powerful advantage in attracting women for sex.