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Evidence against it: | Evidence against it: | ||
* Sperm volume and testes size smaller than promiscuous | * Sperm volume and testes size smaller than pan with promiscuous females | ||
* Cross-culturally high prevalence of monogamy, very low incidence rate of [[polyamory]] | * Cross-culturally high prevalence of monogamy, very low incidence rate of [[polyamory]] | ||
* Despite sexual liberation, no evidence of widespread promiscuity and still very low non-paternity rates | * Despite sexual liberation, no evidence of widespread promiscuity and still very low non-paternity rates |