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What is the Oldest Fossil on Earth?
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Who made these circles in the Sahara?
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Unearthed: Mayan City of Blood (S1, E1) | Full Episode
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2 Hours Of Science Facts About Our Solar System
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8. The Sumerians - Fall of the First Cities
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Tuareg: The Warriors of the Dunes | Go Wild
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How the UN is Holding Back the Sahara Desert
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