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  • Making Stone Tools by Flintknapping

    Making Stone Tools by Flintknapping

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    (1 min 23 sec) Stone tools similar to those found at prehistoric archaeological sites can be made by fracturing rocks, a technique known as flintknapping.

  • Using DNA to Trace Human Migration

    Using DNA to Trace Human Migration

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    All living humans originated from populations of ancestors who migrated out of Africa less than 100,000 years ago. Learn how scientists have used genetic markers to trace the migration routes and origins of modern human populations.

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