Movie showing the fin of Tiktaalik. (IMAGE) Proceedings of the National Academy of Sciences Caption Movie showing the fin of Tiktaalik. Caption information and higher quality versions of all images, illustrations, and videos for this highlight can be found at: https://drive.google.com/open?id=1jIwVkCWU_C9cCUMDOIz8NdpfO_SxOt4n Credit Movie courtesy of Thomas A. Stewart 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.