To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 2 Circulation during the resting state. Mid-longitudinal T1w-MR image during resting state obtained every 0.64 s. From original images shown in Fig. 3, 64 images are replayed at 10 flames per second. Roles of Keber's valve and foot chamber for foot manipulation in the mussel Nodularia douglasiae Eriko Seo, and Yoshiteru Seo Biology Open 2018. 8:None-None; doi: 10.1242/bio.039859 Download Original Video