7100856-3×2-700×467 PHOTO: A pair of nautilus filmed feeding on the remains of a fish during an underwater expedition to 800 metres below sea level near Osprey Reef, off the coast of Queensland, in 2009. (Supplied: Dr Rob Beaman/MARUM University of Bremen) Posted on April 13, 2017April 13, 2017Full size 700 × 467