Diatom with attached ciliate epibionts (IMAGE) Marine Biological Laboratory Caption Coscinodiscus wailesii diatom with attached Pseudovorticella coscinodisci ciliate epibionts. Streak lines were derived from flows generated by the ciliate epibionts. The source video was captured at 500 frames per second and the image integrates particle paths over a 200 frame interval. Credit Kanso et al, PNAS, 2021. Usage Restrictions Please use with proper credit. 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.