title: Evolution: don't be so butch, dear!
abstract: Simultaneous hermaphrodites are both male and female, which could lead to conflicts between partners over optimal investment to the two sex functions. New evidence from hermaphroditic freshwater snails suggests that transferred seminal fluids affect the partner's male function.
authors.affiliation: Evolutionary Biology, Zoological Institute, University of Basel, Vesalgasse 1, CH-4051 Basel, Switzerland. Electronic address: lukas.scharer@unibas.ch.
authors.forename: Lukas
authors.initials: L
authors.lastname: Schärer
mesh_terms: D000818:Animals; D005260:Female; D057850:Hermaphroditic Organisms / Q000502:physiology*; D008195:Lymnaea / Q000502:physiology*; D008297:Male; D029589:Seminal Plasma Proteins / Q000378:metabolism*; D012726:Sexual Behavior, Animal / Q000502:physiology*
chemical_list: D029589:Seminal Plasma Proteins