Unearthing Secrets of the Past (Full Episode) - Drain the Oceans - National Geographic

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From titanosaur fossils to submerged Mayan caves, and even a thirty-two-ship whaling disaster, science unearth secrets of hidden history below the ocean's wave. Join National Geographic and the Drain the Oceans team in this full episode as experts seek answers with the latest technology, helping understand the secrets of the past.