“Parental investment theory predicts that, on average, the sex that invests more in its offspring, including the size of gametes, gestation, lactation and child rearing, will be more selective when choosing a mate, and the less-investing sex will engage in more intra-sexual competition for access to mates.”
Quote by Riadh Abed
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Evolutionary Psychiatry: Current Perspectives on Evolution and Mental Health
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Source: Evolutionary Psychiatry: Current Perspectives on Evolution and Mental Health