Prominent biologists, such as Charles Darwin, E. O. Wilson, and W. D. Hamilton, have found the evolution of cooperation fascinating because natural selection favors those who achieve the greatest reproductive success while cooperative behavior often decreases the reproductive success of the actor (the individual performing the cooperative behavior).
Biólogos famosos como Charles Darwin, E.O. Wilson, e W.D. Hamilton, atoparon que a evolución da cooperación era fascinante porque a selección natural favorece aos que conseguen o maior éxito reprodutivo, mentres que o comportamento cooperativo adoita diminuír o éxito reprodutivo do actor (o individuo que realiza o comportamento cooperativo).