Dr. Hattie Bartlam-Brooks in the Field (IMAGE) NASA/Goddard Space Flight Center Caption Dr. Hattie Bartlam-Brooks collared a zebra with GPS to track their location along the migration route. Credit Botswana Herbivore Research 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.