Neanderthals are found in many places, but lately Israel has been popping as a hot location. https://www.haaretz.com/archaeology/2025-03-11/ty-article-magazine/archaeologists-in-israel-uncover-one-of-the-oldest-burial-grounds-in-the-world/00000195-7fac-d0f8-a1f7-7fef9baf0000
The common wisdom on Neanderthals is that their genetics are in current human genetics, and that interbreeding occurred. Somewhere around 55,000 years ago, habits shifted and the Neanderthals and other cultures began to bury their dead ceremonially. Speculation abounds on what this means in terms of whether they have souls or not, but it is clear that if there is a belief in some manner of afterlife, then the concept of soul must not be far behind.
Some effort is all ready being exerted to make genetic clones of them: https://science.howstuffworks.com/life/genetic/bring-neanderthals-back.htm
This, however, is probably not the kind of resurrection ideal these burials were anticipating. At the very least, it would appear that the Bible injunction about the End of Days being like the Days of Noah is trying to come into some awkward focus by the hand of man. More interesting, though, would be what the Neanderthals believed who were buried in these places.