| Such simultaneous sampling may be common in lekking and chorusing species, which have been the subjects of many studies of sexual selection. |
| The fact that phenotypic differentiation is most pronounced in male secondary sexual ornaments suggests a primary role for sexual selection. |
| For many flying animals, natural and sexual selection likely work in concert to promote enhanced maneuverability. |
| Extrapair paternity is widespread within passerine birds and is indicative of sexual selection. |
| We studied sexual selection in the red bishop, a sexually dimorphic and polygynous weaverbird from Southern Africa. |
| The best evidence so far for parasite-mediated sexual selection has been found in the barn swallow, Hirundo rustica. |
