Scientists have discovered ancient DNA, including that of woolly mammoths, within frozen squirrel feces in Canada's Yukon territory. The genetic material, ranging from 3,000 to 700,000 years old, was found sealed in rodent burrows. This unexpected find offers a unique glimpse into past biodiversity and ecosystems, with researchers noting the potential of fecal matter as a source for paleogenomic studies. AI
RANK_REASON Scientific discovery of ancient DNA in an unusual source. [lever_c_demoted from research: ic=1 ai=0.1]
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