Male Dolphins / Shark Bay (IMAGE) University of Zurich Caption The cooperation of male dolphins for the purpose of reproduction is highly unusual in the animal kingdom. Credit www.sharkbaydolphins.org © Simon Allen Usage Restrictions Credit must be given to the creator. License CC BY 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.