Przewalski's Horses (IMAGE) University of Veterinary Medicine -- Vienna Caption The diet of the Przewalski's horses changed to grass after their reintroduction in the Gobi desert. Credit Martina Burnik Sturm/Vetmeduni Vienna 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.