Chimp Tools (IMAGE) University of Southern California Caption Environmental shots, of the Issa study area in the Ugalla region, are by James Moore. Note: The inset shows adhering sediment. Credit Courtesy of Ugalla Primate Project 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.