To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie S4. Stalling of the beating in one flagellum of the marine quadriflagellate T. suecica. Coordinated beating of algal flagella is mediated by basal coupling Kirsty Y. Wan, and Raymond E. Goldstein PNAS. 2016. 113:E2784-E2793 DOI: 10.1073/pnas.1518527113 Download Original Video Browse All Videos »