Emory oak grove (IMAGE) Northern Arizona University Caption Souther, left, working in an Emory oak grove with students Megan Quinn, Brandee Joe and Timberlee Castillo and with Anna Jackson, a citizen of the Yavapai Apache Nation, center. Credit Credit: Sierra Bryan, KNAU 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.