Abstract
The author discusses the question, if sociobiology can be relevant for the conceptual foundations of ethics. She comes to the conclusion that sociobiology cannot reduce the meaning of moral terms to that of sociobiological discourse, but that sociobiology might nevertheless be able to shed light on the complex phenomenon of morality by demonstrating the presence of traces of our evolutionary past in our behavior. Thereby sociobiology might be relevant for elucidating the relation between »can« and »ought«, that is, for the question of practicability of moral norms.