A cluster of male ruby brittle stars (Ophioderma rubicundum) atop a brain coral.
These males will soon release sperm during a night-time spawning event.
Image ID: sanc0448, NOAA's Sanctuaries Collection
Location: Flower Garden Banks National Marine Sanctuary
Photographer: G.P. Schmahl, Sanctuary Superintendent
Credit: NOAA/NOS/NMS/FGBNMS; National Marine Sanctuaries Media Library
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of the U.S. Department of Commerce, National Oceanic & Atmospheric
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November 10, 2017