TED-Ed
      Deep ocean mysteries and wonders - David Gallo (2012x9)
      
      :  12, 2012
      In the deepest, darkest parts of the oceans are ecosystems with more diversity than a tropical rainforest. Taking us on a voyage into the ocean -- from the deepest trenches to the remains of the Titanic -- marine biologist David Gallo explores the wonder and beauty of marine life.