Close-up of a free-swimming holothurian sea cucumber, which feeds on the
ocean floor, but can also swim freely in the water column, perhaps to avoid
predators.
Image ID: expl6235, Voyage To Inner Space - Exploring the Seas With NOAA Collect Photo Date: 2011 July 22 Credit: NOAA Okeanos Explorer Program, Galapagos Rift Expedition 2011
