Turns out, a gene mutation that helps people resist HIV actually popped up 9,000 years ago near the Black Sea—way before Vikings were even a thing! Scientists just traced the CCR5 delta 32 mutation back to a single ancient human, and it spread like wildfire as people started farming and living closer together. It probably helped our ancestors survive new germs, not medieval plagues or Viking raids like everyone thought. Wild how our DNA holds secrets from thousands of years ago! #DNADetective #HIVResistance #AncientHistory #ScienceNews #Genetics #Science