title: Primate penile morphologies and social systems: further evidence for an association.
authors.affiliation: Department of Ecology and Evolution, University of Chicago, IL 60637.
authors.forename: P A
authors.initials: PA
authors.lastname: Verrell
mesh_terms: D000818:Animals; D005260:Female; D008297:Male; D010413:Penis / Q000033:anatomy & histology*; D010802:Phylogeny; D011323:Primates / Q000502:physiology*; D012641:Selection, Genetic; D012726:Sexual Behavior, Animal; D012919:Social Behavior