UNDERWATER of marsh bottom with mud mounds, worms. CU of terebellid worm with translucent tentacles in mud. CU of terebellid worm tentacle dragging along mud. MS of many terebellid worm tentacles bursting forth from within body. CU of terebellid worm tentacles catching food brought by tide. MS of terebellid worm tentacles extending from mound to forage for food, PAN along tentacles to burrow in mud mound. CU of tentacles feeling for food. Time-lapse MS of terebellid tentacles foraging for food. (407)