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Eurasia's Main Axis Is East/west, Whereas The Main Axis Of The Americas Is North/south. Eurasia's East/west Axis Meant That Species Domesticated In One Part Of Eurasia Could Easily Spread Thousands Of Miles At The Same Latitude, Encountering The Same Day-length And Climate To Which They Were Already Adapted.
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Eurasia's Main Axis Is East/west, Whereas The
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Jared Diamond
Eurasia's Main Axis Is East/west, Whereas The Main Axis Of The Americas Is North/south. Eurasia's East/west Axis Meant That Species Domesticated In One Part Of Eurasia Could Easily Spread Thousands Of Miles At The Same Latitude, Encountering The Same Day-length And Climate To Which They Were Already Adapted.
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