In a surprising reversal of conventional wisdom, a DNA-based study has revealed that the last of the woolly mammoths–which lived between 40,000 and 4,000 years ago–had roots that were exclusively North American.
In a surprising reversal of conventional wisdom, a DNA-based study has revealed that the last of the woolly mammoths–which lived between 40,000 and 4,000 years ago–had roots that were exclusively North American.