Bushcrickets (IMAGE) Bielefeld University Caption Caught in the act: The spermatophores of male bushcrickets can attain up to 40 percent of their bodyweight. The actual sperm transfer comes later -- the Bielefeld researchers' findings suggest that when that happens is something the male determines. Credit Klaus Reinhold, Bielefeld University Usage Restrictions The image may only be used with appropriate caption or credit. 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.