Coevolution of male and female genital morphology in waterfowl.
Most birds have simple genitalia; males lack external genitalia and females have simple vaginas. However, male waterfowl have a phallus whose length (1.5->40 cm) and morphological elaborations vary among species and are positively correlated with the frequency of forced extra-pair copulations amo...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Public Library of Science (PLoS)
2007-05-01
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| Series: | PLoS ONE |
| Online Access: | http://europepmc.org/articles/PMC1855079?pdf=render |