Reconstruction of Lucy, the most famous skeleton of Australopithecus afarensisMLouisphotography/AlamyThis is an extract from Our Human Story, our newsletter about the revolution in archaeology.Sign up to receive it in your inbox every month.Whenever we think about the process of evolution, theres a risk of falling into the trap of telling stories. Human minds are prone to interpret the world in terms of stories: its just one of our biases, along with the one that causes us to see faces in clouds and on pieces of toast. So we always have to be