Turns out, the world’s oldest known plague wasn’t just a human problem—sheep were in on it too! Scientists found 4,000-year-old sheep DNA with traces of Yersinia pestis, the same bacteria behind the Black Death. Back then, the plague couldn’t even use fleas to spread, so livestock may have been the real MVPs (or villains) in moving the disease across Eurasia. Imagine catching the plague from your dinner! #Science #AncientHistory #Plague