Otter Jaw Comparisons (IMAGE) University at Buffalo Caption Heat maps show the location of weak spots (red and white) on the jaws of various otter species in biting simulations. The jaw of Siamogale melilutra, the giant prehistoric otter, (upper right-hand corner) has few weaknesses. Credit Credit: Tseng et al., Scientific Reports, 2017 Usage Restrictions Image may be republished with credit. 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.