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TWO-HOUR SEASON FINALE
In the two-hour season finale, Einstein settles into life in America and assumes the role of world citizen.
Why some parents in Afghanistan choose to raise their daughters as boys.
Watch A Preview
Sunday June 25 9/8c
In Appalachia, mountaintop removal for coal mining is devastating to the local environment and water supply.
Life Below Zero
Watch your favorite National Geographic Channel shows the day after they air.