Scat Collectors (IMAGE) Washington University in St. Louis Caption Karen DeMatteo and a provincial park guard at the Reserva de Biosferá Yabotí in Misiones, Argentina, collecting a sample of carnivore scat for DNA testing and analysis. Credit Photo: Courtesy of Karen DeMatteo 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.