Leopard Gecko (IMAGE) University of California - Riverside Caption Tail movements in geckos facilitate rotation of the pelvis and increase step length, a finding that is likely applicable to many terrestrial animals with tails. Credit UC Riverside 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.