http://www.sciencemag.org/news/2021/06/ancient-siberian-cave-hosted-neanderthals-denisovans-and-modern-humans-possibly-same

In Siberia, researchers lay out a grid in Denisova Cave to systematically sample soil layers for DNA.

A decade ago, anthropologists shocked the world when they discovered a fossil pinkie bone from a then-unknown group of extinct humans in Siberia’s Denisova Cave. The group was named “Denisovans” in its honor. Now, an extensive analysis of DNA in the cave’s soils reveals it also hosted modern humans—who arrived early enough that they may have once lived there alongside Denisovans and Neanderthals.