Oceanic cartographer Marie Tharp helped prove the theory of continental drift with her detailed maps of the ocean floor. This animation by Rosanna Wan for the Royal Institution tells the fascinating story of Tharp’s groundbreaking work. The Short Film Showcase spotlights exceptional short videos created by filmmakers from around the web and selected by National Geographic editors. The filmmakers created the content presented, and the opinions expressed are their own, not those of National Geographic Partners.

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