Behavioral and Brain Sciences

Open Peer Commentary
Mazur & Booth: Testosterone and dominance

Signalling via testosterone: Communicating health and vigour

Alejandro Kacelnik a1 and Sasha Norris a1
a1 Department of Zoology, University of Oxford, Oxford OX1 3PS, England


Our commentary summarises the current understanding of how testosterone can be used as a mechanism to link quality to external traits potentially used in sexual signalling, particularly female choice. Testosterone-dependent traits may reveal male's status to rivals and immunocompetence to females. We highlight some interesting unanswered questions and suggest that cross-disciplinary collaboration would help solve them.