Ancient DNA from a tomb near Paris reveals a shocking prehistoric reset: one population vanished and was replaced by newcomers from the south. The two groups show no genetic connection, signaling a major upheaval around 3000 BC. Disease, including early plague, likely played a role, but wasn’t the only cause. The change also reshaped society, ending tightly knit family burials and coinciding with the disappearance of Europe’s megalith builders. Genetic analysis shows that the people buried before and after this decline were not related, indicating a major population replacement. "We see a clear genetic break between the two periods," said Frederik Valeur Seersholm, assistant professor at th... [2426 chars]