6 - Normal Science

Summary

The triumph of Darwinian evolutionary biology in the second half of the twentieth century brought social behavior into the picture, although – labeled “sociobiology” – not without controversy. The mechanism–organicism split continued to divide evolutionists, with “Standard Evolutionary Thinkers” firmly mechanist, and challengers “Extended Evolutionary Synthesists” – often appealing to evolutionary development (“evo-devo”) – firmly organicist.