Behavioral and Brain Sciences

Short Communication

Is fluctuating asymmetry a signal or a marker of genetic fitness?

Ulrich Mueller a1
a1 Institute of Medical Sociology and Social Medicine, Medical School, University of Marburg, 35033 Marburg, Germany


Fluctuating asymmetry is more a signal of genetic fitness than a marker observable only to the researcher. Hence, it has to be demonstrated that low FA is an honest signal of genetic quality; this has not been demonstrated in Gangestad & Simpson's otherwise useful review.