More:

https://en.wikipedia.org/wiki/Interbreeding_between_archaic_and_modern_humans

I recommend also using the Pubpeer extension on your browser for topics like this for more context as were still building a fuzzy picture.

https://addons.mozilla.org/en-US/firefox/addon/pubpeer/

https://chromewebstore.google.com/detail/pubpeer/fmcdfigcdfkdghdklblbbpacikcchbbh?hl=en&pli=1