Behavioral and Brain Sciences

Open Peer Commentary
Campbell: Staying alive

How is maternal survival related to reproductive success?

X. T. Wang a1 and Ralph Hertwig a1
a1 Center for Adaptive Behavior and Cognition, Max Planck Institute for Human Development, 14195 Berlin, Germany


Campbell's target article is a stimulating attempt to extend our understanding of sex differences in risk-taking behaviors. However, Campbell does not succeed in demonstrating that her account adds explanatory power to those (e.g., Daly & Wilson 1994) previously proposed. In particular, little effort was made to explore the causal links between survival (staying alive) and reproduction.