Biodiversity (IMAGE) University of Helsinki Caption Domestic cattle and Greater Rhea (Rhea americana) coexisting in native grasslands, Uruguay. Credit Gonzalo Cortés Capano 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.