The Incredible Human Journey Season 1 Episode 1
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The Incredible Human Journey: How did we get here? Following a trail of clues from the latest scientific research Dr Alice Roberts re-traces the greatest ever journey taken by our ancestors. Thousands of years ago one small group of our species Homo sapiens crossed out of Africa and into the unknown. Their descendants faced baking deserts sweat-soaked jungles and frozen wildernesses and risked everything on the vast empty ocean.Within 60000 years they colonised the whole world... How did they do it? Why do we their descendants all look so different? And what did we have that meant we were the only human species to survive?Using the evidence from genetics fossils archaeology and climatology Dr Alice Roberts uncovers five epic routes our ancestors took across the globe and the obstacles and brutal challenges they encountered along the way. It reveals how our family tree grew and spread out across the world producing all the variety we see in the human species today but despite all that diversity Alice reveals how astonishingly closely related we all are.Out of AfricaAlice travels to Africa in search of the birthplace of the first people. They were so few in number and so vulnerable that today they would probably be considered an endangered species. So what allowed them to survive at all? The Bushmen of the Kalahari have some answers - the unique design of the human body made them efficient hunters and the ancient click language of the Bushmen points to an early ability to organise and plan.Humans survived there but Africa was to all intents and purposes a sealed continent. So how and by what route did humans make it out of Africa? Astonishing genetic evidence reveals that everyone alive today who is not African descends from just one successful tiny group which left the continent in a single crossing an event that may have happened around 70 thousand years ago. But how did they do it? Alice goes searching for clues in the remote Arabian Desert.