This technique of ancient soil DNA extraction seems quite a game changer. I wonder if it has to be a cave environment / permafrost or simply any layer of undist

This technique of ancient soil DNA extraction seems quite a game changer. I wonder if it has to be a cave environment / permafrost or simply any layer of undisturbed soil / sediment. Imagine if you can go around the planet collecting soil cores creating a completely new window into prehistory... [1] https://arstechnica.com/science/2017/04/no-bones-needed-ancient-dna-in-soil-can-tell-if-humans-were-around/ https://arstechnica.com/science/2017/04/no-bones-needed-anci... [2] https://www.popularmechanics.com/science/archaeology/a36177004/ancient-dna-sequenced-from-dirt-genomics-breakthrough/ https://www.popularmechanics.com/science/archaeology/a361770... [3] https://scitechdaily.com/extracting-ancient-dna-of-long-extinct-plants-and-animals-from-soil/ https://scitechdaily.com/extracting-ancient-dna-of-long-exti...