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A holothurian, or sea cucumber, swims gracefully through the water column just above the seafloor during exploration of a ridge southeast of Maro Reef on August 6, 2015.

Video courtesy of the NOAA Office of Ocean Exploration and Research, 2015 Hohonu Moana.



Related Links

Daily Updates: August 6 Update

2015 Hohonu Moana: Exploring Deep Waters off Hawai’i

NOAA Ship Okeanos Explorer