ularly likely to survive and leave descendants. For example, humans who defended territory, nurtured children, and strove for domination were more likely to successfully reproduce than humans who did not do these things, with the result that their ultimate descendants--members of the present generation--generally have all of these behavioral tendencies.
             The powerful influence of genes on behavior is a central theme of evolutionary psychology. The variability of passions together with their perceived influence over ail parts of the mind combined to produce a commonplace of religious psychology. people might be able to keep a weak drive from influencing their behavior, but they had practica
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