Season 51.
Season 1.Season 2.Season 3.Season 4.Season 5.Season 6.Season 7.Season 8.Season 9.Season 10.Season 11.Season 12.Season 13.Season 14.Season 15.Season 16.Season 17.Season 18.Season 19.Season 20.Season 21.Season 22.Season 23.Season 24.Season 25.Season 26.Season 27.Season 28.Season 29.Season 30.Season 31.Season 32.Season 33.Season 34.Season 35.Season 36.Season 37.Season 38.Season 39.Season 40.Season 41.Season 42.Season 43.Season 44.Season 45.Season 46.Season 47.Season 48.Season 49.Season 50.Season 51.
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Episode 1.Ancient Earth: Birth of the Sky
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Episode 2.Ancient Earth: Frozen
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Episode 3.Ancient Earth: Life Rising
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Episode 4.Hunt for the Oldest DNA
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Episode 5.Hidden Volcano Abyss
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Episode 6.Arctic Sinkholes
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Episode 7.Polar Extremes
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Episode 8.A.I. Revolution
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Episode 9.Star Chasers of Senegal
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Episode 10.Great American Eclipse
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Episode 11.Secrets of the Forbidden City
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Episode 12.Ancient Maya Metropolis
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Episode 13.Making North America: Origins
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Episode 14.Making North America: Life
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Episode 15.Making North America: Human