Leave your feedback Share Copy URL https://www.pbs.org/newshour/show/ancient-skull-discovery-offers-researchers-a-view-into-past Email Facebook Twitter LinkedIn Pinterest Tumblr Share on Facebook Share on Twitter Story The discovery of a 1.8 million-year-old skull at Dmanisi in Georgia has revolutionized scientists’ idea of human evolution. Paleoanthropologist Donald Johanson of the Institute of Human Origins at Arizona State University joins Jeffrey Brown to discuss what these ancient remains teach us about our ancestors and origins.