“…However, negative outcomes of bullying perpetration are not universal: After controlling for childhood risk, bullies mastered normative developmental tasks just as well as nonbullies (Kretschmer et al., 2018) and did not fare worse on psychological adjustment, health, or wealth (Copeland, Wolke, Angold, & Costello, 2013; Wolke, Copeland, Angold, & Costello, 2013). Some suggest that bullying has an adaptive function and is instrumental to greater health and reproductive fitness (Koh & Wong, 2017; Volk, Camilleri, Dane, & Marini, 2012; Volk, Dane, Dane, Marini, & Vaillancourt, 2015; Volk, Della Cioppa, Della Cioppa, Earle, & Farrell, 2015). Here, we provide an extensive empirical test of the hypothesis that bullying might carry an evolutionary advantage for perpetrators, utilizing data from three cohorts, of which two long‐term: The National Child Development Study (NCDS) has followed participants until age 55, the British Cohort Study (BCS70) has followed participants until age 42, and the TRacking Adolescents’ Individual Lives Survey (TRAILS) has followed participants until age 26.…”