Christmas Tree Worms are named for their spindly, fir tree like appearance. Their festive looking crowns protrude from their otherwise tube-like body, composed of radioles (similar to hair) appendages radiating from the worm’s spines.  Christmas Tree Worms are ciliary feeders, which means they use cilia, tiny-hair-like bristles on their appendages, to catch food as it … Continue reading Christmas Tree Worm