Tail for Sensing (IMAGE) University of Kansas Caption KU researcher Paul Selden said the ancient arachnid likely used its whippy tail as an antenna. Credit University of Kansas | KU News Service 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.