Why have you got a chin? Why can you dance, when other bipeds can’t? Did you know that your DNA has fragments of ghostly code from early hominids for whom we haven't found any other physical evidence?

Go back in time to when there were at least nine different hominins roaming the earth at the same time ... Human Origins: A Short History outlines our fellow hominins and thinks about how we became the last ones standing.

Guest: Sarah Wild, author and journalist