A number of academic disciplines are seeking to rearticulate the distinction between the natural and the normative by rethinking the position humans occupy within nature. This article surveys this interdisciplinary debate in which the possibility of understanding humans as normative beings is often called into question. The aim of this survey is to identify the stakes involved in such debates and to reveal the underlying policy dimension of current discussions about human nature. This article concludes by arguing that the main (...) target of the current battles for recognition between disciplines is the `public', which is becoming the ultimate epistemic authority in a game with high political stakes. Key Words: humanity • normativity • performativity • political theory • public understanding of science. (shrink)