Signals

Ancient DNA reveals the mysterious collapse of Europe's megalith builders

DNA from a 5,000-year-old French megalithic tomb reveals that the people buried before and after a population collapse were genetically unrelated, pointing to a major migration after a devastating crisis. The shift coincided with new social traditions and the disappearance of the communities that…

A genetically documented population collapse and replacement at a megalithic site directly pressures assumptions about continuity in early European monument-building traditions — who built what, and for whom, may need to be separated.
Ancient DNA reveals the mysterious collapse of Europe's megalith builders
Source: https://www.sciencedaily.com/releases/2026/07/260707054108.htm

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