This contribution aims reviews of approaches related to levels of natural selection and key events that took place during the 1960s, including the rejection of group selection and development of alternative theoretical framework to explain the evolution of behaviors intended cooperative and altruistic. It shows how such concepts have revived based on a more care-ful formulation and how the theory of multilevel selection (including group selection) provides a theoretical basis for sociobiology in the future, once its past has been understood properly.En esta contribución se pretende una revisión de enfoques referidos a niveles de selección natural y de acontecimientos fundamentales que tuvie-ron lugar durante la década de 1960, incluyendo el...