Prehistoric Horse Jaw (IMAGE) University of Montreal Caption This horse mandible from Cave 2 shows a number of cut marks on the lingual surface. They show the animal's tongue was cut out with a stone tool. Credit Université de Montréal 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.