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anth 200 notes 6 - -Windows of Opportunity-In the last...

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Migration Timing - 1.8 mya Pleistocene began o pulses of cooling o no geological evidence that it has ended o warm trigger cold - 9 times in the past 600,000 years to expose Beringian Land
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Unformatted text preview: -Windows of Opportunity-In the last 100,000 years ago: 50 and 20 thousand years ago the land bridge was back...
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