TED-Ed
David Gallo: Deep ocean mysteries and wonders
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 <i>Titanic</i> -- marine biologist David Gallo explores the wonder and beauty of marine life. Find more TED-Ed videos on our new YouTube channel: <a href="http://youtube.com/TEDEd">youtube.com/TEDEd</a>.