Surface of a Cat's Tongue (IMAGE) Proceedings of the National Academy of Sciences Caption This is the surface of a cat's tongue. Rigid, hollow papillae near the tongue tip are shown on the right, while soft, conical papillae near the throat are shown to the left. Credit Alexis Noel 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.