Pretty sure we evolved the entire tribal cocktail of behaviors specifically to do better than isolated specimens. And the current culture, as in the sum of civi

Pretty sure we evolved the entire tribal cocktail of behaviors specifically to do better than isolated specimens. And the current culture, as in the sum of civilization's achievements, is very much a product of those behaviors and organization permeating the everyday life. Moreover, afaik development of language is hypothesized to be interlinked with social behaviors (and empathy as a whole), so a species of antagonists would probably have trouble establishing civilisation in the first place.