Clymene Dolphin (image) Wildlife Conservation Society Caption A newly published study on the clymene dolphin, a small and sleek marine mammal living in the Atlantic Ocean, shows that the species arose through natural hybridization between two closely related dolphins species, the spinner dolphin and the striped dolphin. Credit R. Pitman Usage Restrictions One-time usage only. Must use with the following credit: R. Pitman 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.