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Study Indicates Woolly Mammoth Population Crashed Twice

The most complete genetic information assembled on woolly mammoths is providing insight into their demise, revealing they suffered two population crashes before a final, severely inbred group succumbed on an Arctic Ocean island. Scientists unveiled on Thursday the first two full genomes of these mighty elephant relatives emblematic of the Ice Age, showing they experienced an extensive loss of genetic diversity before perishing roughly 4,000 years ago. Well-preserved DNA came from two...

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