title: Female ducks can double their reproduction.
authors.affiliation: Department of Zoology, Gothenburg University, Box 463, 405 30 Göteborg, Sweden.
authors.forename: M
authors.initials: M
authors.lastname: Ahlund
authors.forename: M
authors.initials: M
authors.lastname: Andersson
mesh_terms: D000818:Animals; D004372:Ducks / Q000502:physiology*; D005260:Female; D008297:Male; D010058:Oviposition; D012098:Reproduction; D012726:Sexual Behavior, Animal