Chickens (IMAGE) University of Chicago Press Journals Caption While sexual coercion is common in fowl, females are able to exert a strong influence on fertilization by differentially dumping sperm of individual males. Credit Tommaso Pizzari © 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.