Details and discussion of the literature review We searched for studies on the relationship between male height and reproductive success using specific search terms (male, height, stature, reproductive success, number of children) in electronic databases (PubMed and WebOfScience) and by checking references of relevant papers. Only studies in which the number of live born children or the number of surviving children was used as a measure of reproductive success were included. Ideally, we would have carried out a meta-analysis but unfortunately too few studies reported the required estimates of effect size necessary to conduct such an analysis (in particular the effects of height squared were rarely tested or reported)