E/V Nautilus, the current ship of exploration of Titanic discoverer Dr. Robert Ballard, is exploring the ocean studying biology, geology, archeology, and more.
This beautiful colonial organism drifted past Hercules' cameras, and we followed it for as long as we could keep track. They are made up of many smaller animals called zooids, and can be found floating around the pelagic zone in ocean basins around the world. One famous siphonophore species is the deadly Portugese Man O' War.