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Crinoid and Coral
Close-up of a crinoid attached to bubblegum coral (Paragorgia) seen during the Deepwater Canyons 2013: Pathways to the Abyss expedition. The coral’s polyps are extended in a feeding position. Both animals capture small organisms and organic matter in the water column as it drifts by. From: Coral Gardens: Forests of the Deep.
Credit

Deepwater Canyons 2013 – Pathways to the Abyss, NOAA Ocean Exploration/BOEM/USGS