For centuries, scientists have influenced decision makers on important issues including abortion rights, granting women the vote, and how schools educate us. They have shaped how we think about our minds and bodies and our relationships with each other. And of course, we trust scientists to give us the objective facts. We believe that what science offers us is a story free from prejudice. It is the story of us, starting from the very dawn of evolution. Yet when it comes to women, so much of this story is wrong.