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 Titanic -- marine biologist David Gallo explores the wonder and beauty of marine life. Find more TED-Ed videos on our new YouTube channel: youtube.com/TEDEd.
A pioneer in ocean exploration, David Gallo is an enthusiastic ambassador between the sea and those of us on dry land. Full bio »
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