Xenopus Tadpoles (IMAGE) University of Pittsburgh Caption Xenopus tadpoles are excellent test subjects because their transparent bodies allow for unobstructed views into their internal anatomy. Credit MechMorpho Lab/Lance Davidson 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.