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Parental Investment theory ANTH/SOC 333: Women Across Cultures Kimberly Porter Martin, Ph.D. Some Parental Investment Theory (PIT) Definitions • Parental investment – biological, economic, social and emotional support for offspring. • Differential reproduction – variability in the number of offspring produced by individuals. • Reproductive potential – the maximum number of offspring possible for an individual. • Reproductive success – production of offspring that survive and reproduce. Logical Connections from PIT • Human males only have to make a minimal parental investment to obtain reproductive success (a few sperm) • Female humans must make an enormous parental investment to obtain reproductive success (+/- 5 years) • Male humans have reproductive potential limited only by the number of partners • Females have limited reproductive potential because of the investment needed from mothers • Males and females will have significantly different mate selection strategies because of differential parental investment. Some PIT Assumptions • Human mate choice is influenced by inherited characteristics • Inherited characteristics will reflect the most successful mating strategies over time • Human mate choice is influenced by both conscious and unconscious factors • Culture is the learned set of strategies that help individuals maximize their reproductive success.