> A 2023 study found an introgession from modern humans to Neanderthals around 250,000 years ago The article also mentions a study that suggests Neanderthal Y

> A 2023 study found an introgession from modern humans to Neanderthals around 250,000 years ago The article also mentions a study that suggests Neanderthal Y chromosome was introduced from modern humans in a later event. There's no physical evidence of either of these events, but they make the modern human migration out of Africa much more puzzling.