Coevolution of Male and Female Genital Morphology in Waterfowl

• Patricia L.R. Brennan ,

  *To whom correspondence should be addressed. E-mail: patricia.brennan@yale.edu

  Affiliations Department of Ecology and Evolutionary Biology, and Peabody Natural History Museum, Yale University, New Haven, Connecticut, United States of America, Department of Animal and Plant Sciences, University of Sheffield, Western Bank, Sheffield, United Kingdom

  ⨯
• Richard O. Prum,

  Affiliation Department of Ecology and Evolutionary Biology, and Peabody Natural History Museum, Yale University, New Haven, Connecticut, United States of America

  ⨯
• Kevin G. McCracken,

  Affiliation Institute of Arctic Biology, Department of Biology and Wildlife, and University of Alaska Museum, University of Alaska Fairbanks, Fairbanks, Alaska, United States of America

  ⨯
• Michael D. Sorenson,

  Affiliation Department of Biology, Boston University, Boston, Massachusetts, United States of America

  ⨯
• Robert E. Wilson,

  Affiliation Institute of Arctic Biology, Department of Biology and Wildlife, and University of Alaska Museum, University of Alaska Fairbanks, Fairbanks, Alaska, United States of America

  ⨯
• Tim R. Birkhead

  Affiliation Department of Animal and Plant Sciences, University of Sheffield, Western Bank, Sheffield, United Kingdom

  ⨯