Red tree corals, like these, are a focal point of the Deepwater Exploration of Glacier Bay National Park Expedition. The two red dots are 10 centimeters apart to provide scale.
Red Tree Corals
Image courtesy of NOAA Alaska Fisheries Science Center and Deep-sea Coral Research and Technology Program. Download larger version (jpg, 724 KB).

Red tree corals, like these, are a focal point of the Deepwater Exploration of Glacier Bay National Park Expedition. The two red dots are 10 centimeters apart to provide scale.

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