That remarkable detail was interesting, and I read a bit further on:
"A few years ago, scientists showed that it’s possible to extract
prehistoric human DNA from dirt, "
Summary:
Analysis of DNA from archaic hominids has illuminated human evolution. However, sites where thousand-year-old bones and other remains can be found are relatively rare. Slon
et al. wanted to exploit any trace remains that our ancestors left behind. They looked for ancient DNA of hominids and other mammals in cave sediments, even those lacking skeletal remains. They identified mitochondrial DNA from Neandertal and Denisovan individuals in cave sediments at multiple sites.
Quite interesting.
I recall that recently I was reading how we think Denisovans persisted much later and intermingled with modern humans.
"Denisovans, once lived alongside our early Homo sapiens ancestors. They mingled and had children."
More here: We carry DNA from extinct cousins like Neanderthals. Science is now revealing their genetic legacy
I like that. There's something naturally charming and attractive about these likely rather intelligent (larger than homo sapien brain sized) smaller humans. Who wouldn't want Denisovan genes?
