HumansAlice Roberts: 'We are fundamentally, at the end of the day, animals' Why do we have big brains? Or walk on two legs? Biological anthropologist and broadcaster Alice Roberts talks human exceptionalism, evolution and her new book Humans with Michael MarshallCulture
VideoThese are the extinct humans that live on in your DNA Thanks to ancient interbreeding, the human species we thought had vanished live on inside you Video