JTW's Evolutionary Origins - Author: Wilson, David SloanHOME Group Selection Vs. Individual Selection: A Classic Multilevel Selection Problem"In principle, natural selection can operate simultaneously at more than one level of the hierarchy. The classic multilevel selection problem is the evolution of altruism in groups of socially interacting individuals. Selfish individuals are more fit than alturists within each group (within-group selection), but groups of altruists are more fit than groups of selfish individuals (among-group selection). What evolves in the total population depends on the relative strength of the opposing levels of selection."
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