NOAA Office of Ocean Exploration and Research, 2016 Deepwater Exploration of the Marianas. Download larger version (mp4, 10.7 MB).
Deep-sea lizardfish (Bathysaurus cf. mollis) typically lurk on the seafloor, hiding in wait for unsuspecting prey...but this one surprised us as it swam up and through the water column as we explored an extinct hydrothermal vent chimney in the Mariana region.