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  1. Earth's Greatest Mass Extinction - Full Documentary

    Earth's Greatest Mass Extinction - Full Documentary

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  2. Largest Mass Extinction In Earth's History - Full Documentary

    Largest Mass Extinction In Earth's History - Full Documentary

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  3. Documentary: Mass Extinction: Permian Period - Earth on Fire - The Great Dying

    Documentary: Mass Extinction: Permian Period - Earth on Fire - The Great Dying

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  4. The Only Time In History That Water Was Safer Than Land

    The Only Time In History That Water Was Safer Than Land

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