Red tree corals often form large, dense communities. In this image, you can also see a few white sponges which often co-locate with deep sea corals.
Red Tree Coral Community
Image courtesy of NOAA Alaska Fisheries Science Center and Deep-Sea Coral Research and Technology Program. Download larger version (jpg, 603 KB).

Red tree corals often form large, dense communities. In this image, you can also see a few white sponges which often co-locate with deep sea corals.

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