As a continuation to the Blog “Divulgation (25)” entitled: “Selection factors in the Human Species, which presented the studies of Dr. LauraBetzig, Karen S. Cook, Gregory D. Webseter and A. Horowitz, in this entry we describe the contributions on the same subject of Dr. Sergey Gavrilets, Evolutionary Biology and Mathematics professor at the National Institute for the synthesis of mathematics and biology at the University of Tennessee.

Thus, while the blog 25 provided data on the selective influence of the social organization of the human population since the emergence of big cities, in this blog nº 29, studies of S. Gavrilets, provide information on the influence of feminine criteria in the search of descendants in the same period of time.

Based on the classification of physically strong men (that associate strength and promiscuity) and physically weak men (associated with loyalty and generosity) it suggests that the emergence of big cities was a change of trend, by giving preference to the loyal and generous instead of strong and promiscuous, preferred in the previous age explaining that “the creation of these groups big cities, changes in social habits, in relationships, providing security for the survival of women and children, of which previously had been done by the dominant man. Over time, non-dominant men developed new strategies to compete with others and secure their relationships. Monogamy was established as essential, as strong men continued searching multiple relationships.”

Finally, G. Gavrilets explained that the results of his investigation, as a result of applying a mathematical model simulation, showed that “the decision of women, based on the preference of loyalty, has determined the evolution, explained from a point of view away from a pure biologic explanation, and that from now on, evolutionary studies should take into account the point of view of “female choice” to explain the questions and social behaviors.

Thus, we can conclude that the appearance of cities, approximately 10000 years ago, started a new stage in the evolutionary selection of the human species based on the absence of natural predators, on the influence of the forms of the State and on the feminine criteria in the choice of mate in an urban environment.