Long ago North America was frozen over, with mile deep ice where New York is today (40 degrees North Latitude) while Siberia (even at 70 degrees North Latitude) was warm and lush, covered with vegetation for huge herds of mammoths, rhinos, sloths, etc....
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What if Mammoths Never Went Extinct?
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Long ago North America was frozen over, with mile deep ice where New York is today (40 degrees North Latitude) while Siberia (even at 70 degrees North Latitude) was warm and lush, covered with vegetation for huge herds of mammoths, rhinos, sloths, etc....