Otter Jaws (IMAGE) University at Buffalo Caption Digital, 3-D reconstructions show the skulls -- including the jaws -- of the roughly 15-pound common otter Lutra lutra (left), and the roughly 110-pound Siamogale melilutra, a giant prehistoric otter with a surprisingly powerful bite (right). Credit Credit: Z. Jack Tseng Usage Restrictions This image may only be used with news reports discussing the research in the related press release. 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.