Tongue Worm and Host Animal with Shell (IMAGE) Yale University Caption This 3-D reconstruction shows two pentastomids (tongue worms), in orange. They are invading a host animal, represented by the other colors. One of the tongue worms is located inside the shell. Credit D. Siveter, D. Briggs, D. Siveter, M. Sutton 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.