title: Experiments with genitalia: a commentary.
abstract: There has been a recent burst of studies of the function of genitalia, many of which share several important shortcomings. Given that further studies on this topic are likely (there are probably millions of species showing rapid genital divergence), I discuss the studies critically to promote clear formulation of hypotheses and interpretation of results in the future. I also emphasize some possibly important but neglected variables, including female stimulation, phylogenetic contexts, and the behavior of male genitalia, and outline simple techniques that could improve future studies.
authors.affiliation: Smithsonian Tropical Research Institute and Escuela de Biologia, Universidad de Costa Rica, Ciudad Universitaria, Costa Rica. william.eberhard@gmail.com
authors.forename: William G
authors.initials: WG
authors.lastname: Eberhard
mesh_terms: D000818:Animals; D005075:Biological Evolution; D005260:Female; D005835:Genitalia / Q000033:anatomy & histology*; D008297:Male; D052586:Mating Preference, Animal