A red, translucent deep sea creature with a bulbous top and tapering body against a dark speckled background.

Sea Cucumber

Image courtesy of NOAA Ocean Exploration, 2025 Beyond the Blue. Download larger version (jpg, 806 KB).

Upon reaching the seafloor to start the second dive of the Papahānaumokuākea ROV and Mapping expedition, the team was greeted by this dancing sea cucumber, or holothurian.