Jaguar and Sabertooth Forelimbs (IMAGE) National Evolutionary Synthesis Center (NESCent) Caption These X-ray images show cross-sectional dimensions of the upper arm bone of a jaguar (A and B) compared to a saber-toothed cat (C and D). Credit Photo by Julie Meachen-Samuels 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.