Skulls (image) University of New South Wales Caption This shows cut away views through the skulls of (A) the sabre-toothed 'tiger' (Smilodon) and (B) the bizarre pouched sabre-tooth (Thylacosmilus). Note the incredibly wide gape and huge canine teeth with roots extending almost into the braincase of Thylacosmilus. Credit Credit: S. Wroe Usage Restrictions None 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.