Endangered Mexican Gray Wolf (IMAGE) Arizona State University Caption New research can help ecosystem managers identify species vulnerabilities and prevent populations from becoming at risk, like the endangered Mexican gray wolf. Credit U.S. Fish and Wildlife Service Usage Restrictions Credit USFWS 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.