Incredible Human Journey. The

All five episodes of the BBC2 documentary series presented by Alice Roberts. Using the latest genetic, climate and archaeological evidence, the series examines the five epic routes that our ancestors took across the globe, and the obstacles and brutal challenges they encountered along the way. It also looks at where the human race came from, how our ancestors colonised the world, and how their journeys changed us, and shows how most of us descend from a tiny group of men and women who left Africa in a perilous crossing - and then went on to colonise the rest of the world.