Adult Saber Tooth (IMAGE) American Museum of Natural History Caption This fossilized jaw of an adult <i>Smilodon fatalis</i> shows the fully erupted canine. Credit © AMNH/J. Tseng Usage Restrictions Can be used with credit language 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.