Stephanie Jenouvrier, Woods Hole Oceanographic Institution (IMAGE) Woods Hole Oceanographic Institution Caption WHOI biologist Stephanie Jenouvrier readies an Emperor penguin chick (about five months old) for tagging during fieldwork in December 2011 in Terre Adélie. The research team utilized Passive Inductive Transponder Tag technology, which helps identify the birds and track demographic data, such as whether they return to the colony to breed and raise chicks. Credit Courtesy of Stephanie Jenouvrier, Woods Hole Oceanographic Institution Usage Restrictions For use in news pieces featuring the research only 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.