Scientists have developed a powerful new way to study sperm competition: Watch the action -- live.
The seminal receptacle (SR) and one
spermatheca of a female D. melanogaster
initially mated to GFP-sperm male
then remated to RFP-sperm male.

Image: © Science/AAAS
Using fluorescent tagging technology, the researchers have bought themselves a front row seat to the fight, allowing them to decipher the strategies males use to ensure their sperm (and not another male's) reach the egg, already helping to debunk a recent theory about sperm competition in Drosophila, according to a study published online today (March 18) in Science Express. "It's one of the most exciting papers in the sperm competition field I've seen for ages," said evolutionary biologist linkurl:David Hosken; of the University of Exeter in the UK, who did not participate in the study. "The paper is really the methodological breakthrough that enables us to capture a...
Drosophila melanogasterDrosophilaScienceDrosophilaTriboliumDrosophila

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