We’ve been told that bones don't lie. But for a century, we were asking them the wrong questions. This episode tackles the myth that the human fossil record is limited to a simple male/female binary. We reveal how new genetic analysis of ancient bones has positively identified individuals who were not XX or XY, but XO, XXY, and XYY. Join us as we explore how these skeletons, combined with their revolutionary burial contexts, are forcing science to confront a more complex and diverse human past.