To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 3 Fluid mechanics during nectophore refill (playback speed slowed 72x). Propulsive design principles in a multi-jet siphonophore Kelly R. Sutherland, Brad J. Gemmell, Sean P. Colin, and John H. Costello Journal of Experimental Biology 2019. 222:None-None; doi: 10.1242/jeb.198242 Download Original Video