• Freeze-drying turned a woolly mammoth’s DNA into 3-D ‘chromoglass’ | The glassy DNA is so stable that it preserved the three-dimensional structure of chromosomes in one woolly mammoth for 52,000 years https://www.sciencenews.org/article/drying-woolly-mammoth-dna-3d-glass 4 comments 11/7/2024 science