In our unique genomes, every one of us carries the story of our species—births, deaths, disease, war, famine, migration, and a lot of sex. But those stories have always been locked away—until now. Who are our ancestors? Where did they come from? Geneticists have suddenly become historians, and the hard evidence in our DNA has blown the lid off what we thought we knew. Acclaimed science writer Adam Rutherford explains exactly how genomics is completely rewriting the human story—from 100,000 years ago to the present.