Chimpanzee Cracking Nuts (image) Max Planck Institute for Evolutionary Anthropology Share Print E-Mail Caption Female Taï chimpanzee cracking Panda nuts with a stone hammer and a root as an anvil. Credit © Christophe Boesch Usage Restrictions The image may only be used with appropriate caption and credit. Share Print E-Mail 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.