The Sperm Wars (1 of 9) (IMAGE)

American Association for the Advancement of Science (AAAS)

The Sperm Wars (1 of 9)

Caption

An Acromyrmex echinatior leafcutter ant male. This image relates to an article that appeared in the March 19, 2010, issue of Science, published by AAAS. The study, by Dr. S.P.A. den Boer of the University of Copenhagen in Copenhagen, Denmark and colleagues, was titled, "Seminal Fluid Mediates Ejaculate Competition in Social Insects."

Credit

[Image courtesy of Tim Evison]

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