How Ancient Humans Survived the Plague — 5,500 Years Before Cities Existed

They lived 5,500 years before the first city was ever built. And plague still found them. New research from ancient DNA reveals that hunter-gatherer families around Siberia's Lake Baikal were devastated by an early strain of Yersinia pestis — the same bacterium behind the Black Death — thousands of years before humans ever lived in crowded towns. Geneticist Eske Willerslev's team found the infection hiding in the teeth of children buried at the Ust'-Ida I and Bratskii Kamen cemeteries, with entire family clusters wiped out within days of each other. This video breaks down what really happened: how the disease was discovered through ancient DNA, why it didn't need rats or cities to be deadly, what a "superantigen" is and why it made this ancient strain so lethal, and what this discovery reveals about the real cost of the closeness that let our ancestors survive. If you're into ancient history, archaeology, and the science of how early humans really lived (and died), subscribe for more deep dives into the world before civilization. 🧬 Sources referenced: Nature journal study on ancient Yersinia pestis genomes from Lake Baikal hunter-gatherer cemeteries; research by Eske Willerslev (University of Copenhagen / University of Cambridge) and Andrzej Weber (Baikal Archaeology Project). #AncientHumans #PlagueHistory #Archaeology #AncientDNA #HumanHistory