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Scientists believe that swarms of hammerheads may be drawn to a group of islands in the Pacific Ocean due to mysterious magnetic forces.
For Jessie and his sled dog team, racing is a full-time job.
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BEHIND THE SCENES
Go on the set for an exclusive inside-look at the making of Genius, featuring interviews with Ron Howard, Geoffrey Rush, Emily Watson, Johnny Flynn, and more.
Original Sin: Sex
Life Below Zero
Sex for Sale: American Escort
Hell on Earth: The Fall of Syria and the Rise of ISIS
The Big Picture with Kal Penn
T. rex Autopsy
Earth: Making of a Planet
Watch your favorite National Geographic Channel shows the day after they air.