Feather Duster Worm on a Reef Ledge

Feather duster worms are segmented worms that build a tube from mucus and sediment and keep their soft bodies hidden inside it. Only the feathery crown shows. It strains plankton from the passing water and works as gills at the same time. The crown can sense shadows too, so it snaps back into the tube the moment a diver or a fish comes too close. In this feather duster worm jigsaw puzzle the fan is wide open above a rough reef ledge, banded cream and rust against blue water.