title: Evolution of external genital development. Preface.
authors.forename: Marilyn B
authors.initials: MB
authors.lastname: Renfree
authors.forename: Michael
authors.initials: M
authors.lastname: Schmid
mesh_terms: D000818:Animals; D005075:Biological Evolution; D001717:Birds; D005260:Female; D005835:Genitalia / Q000196:embryology*; D008297:Male; D038081:Organogenesis; D014426:Turtles