Evolution: sperm ejection near and far.
In promiscuous fruit flies, the last male to inseminate a female has a fertilising advantage. Recent evidence indicates that this happens because females eject previously stored semen after a new copulation, revealing female bias in sperm use and the resulting battle of the sexes over fertilisation.
| Váldodahkki: | |
|---|---|
| Materiálatiipa: | Journal article |
| Giella: | English |
| Almmustuhtton: |
2004
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