Quote
"Ripple” reminds me of starfish locomotion. Starfish have hydraulic water vascular systems that facilitate movement. Ocean water comes into the system via the madreporite (a small opening in the aboral surfaces of starfish). Salt water is then circulated from the stone canal to the ring canal and into the radial canals. The radial canals carry water to the ampullae and provide suction to the tube feet. The tube feet latch on to surfaces and move in a wave, with one body section attaching to the surfaces as another releases. “Ripple” defines the biomechanics of tube feet."
Eva Hayward, “More Lessons from a Starfish: Prefixial Flesh and Transspeciated Selves”, in WSQ 36:3/4, 2008, p. 81
