<i>Callosobruchus maculatus</i> Mating (IMAGE) Uppsala University Caption A female (lower left) and male (top right) Callosobruchus maculatus mating. The mating typically lasts for 2-5 minutes during which the male transfers 40,000-60,000 sperm in an ejaculate weighing about 3-5% of his own body weight. Credit Mareike Koppik Usage Restrictions May only be published in connection to reports about the research by J. Baur, D. Berger or by permission from photographer. 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.