Chimpanzees Jane Tash and Nina (IMAGE) University of Warwick Caption Caption: Chimpanzees Tina and Martin, who were studied at the National Center for Chimpanzee Care in Texas Credit Credit: University of Warwick Usage Restrictions Only to be used in conjunction with this story 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.