Black Rhino and Calf (IMAGE) Duke University Caption A black rhino and its calf; new technology that uses software to read unique features of rhino footprints will help protect this endangered species from poachers. Credit WildTrack Usage Restrictions Please credit WildTrack 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.