NOAA Office of Ocean Exploration and Research, Océano Profundo 2015: Exploring Puerto Rico’s Seamounts, Trenches, and Troughs. Download larger version (mp4, 13.7 MB).
Your afternoon movement of AAAHHH.
This beautiful trachymedusae (jellyfish) was imaged just above the seafloor in Mona Canyon, off Puerto Rico. Exploration of the canyon provided a window into the region’s (volcanic!) geologic past.