HARDtalk’s Stephen Sackur speaks to the world-famous conservation activist Jane Goodall. She has made a unique contribution to humankind’s understanding of our closest living animal relatives, the primates, and in particular the chimpanzee. Dr Goodall was in her twenties when she began her meticulous observation of chimp behaviour deep in Africa. Now she’s 86, and still campaigning to protect the natural world. Can the primates and so many other species be saved from mass extinction?