Tethered Monarch Butterfly (IMAGE) Proceedings of the National Academy of Sciences Caption This is a tethered monarch butterfly flying in the flight simulator. Credit Aye Tenger-Trolander. 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.