... possibly made by Neanderthals And here is the paper this refers to: https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0328390 https://jour

... possibly made by Neanderthals And here is the paper this refers to: https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0328390 https://journals.plos.org/plosone/article?id=10.1371/journal...