Sexual Conflict among Roundworms (IMAGE) University of Oregon Caption University of Oregon and Bowdoin College scientists found that sexual competition among Caenorhabditis remanei males leads to larger sperm and, possibly, changes in behavior that put females at risk. Shown are a C. remanei female, top, above a male. Credit Image by Kristin Sikkink Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.