WHAT’S THE DIFFERENCE BETWEEN FEATHER DUSTER AND CHRISTMAS TREE WORMS? For one thing, the conical feathery crowns of Christmas tree worms shout out their presence with color and beguiling shapes. Feather dusters’ fan-shaped crowns often whisper with subtle elegance. If it’s simply about appreciating the beauty of the reef, that’s the main point – conical versus fan-shaped, bold versus muted. It’s the fan shape that gives feather dusters their other common name, fan worms.
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EVERYBODY RAVES ABOUT THE BEAUTY OF CHRISTMAS TREE WORMS (Spirobranchus giganteus), with their fantastic arrays of bright colors and shapes like perfect fir trees. The wormy bodies behind the gorgeous finery, maybe not so much. The spiraling crowns we see are specialized tentacles, called radioles, that filter plankton from the surrounding waters for food, passing it down to the worm’s mouth in cilia-lined grooves. They also work like “gills” to let the animals absorb oxygen.
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