Dr Alice Roberts discovers how humans left Africa to colonise the world. Here, she looks at our ancestors' seemingly impossible journey to Australia. Show more
Alice Roberts investigates how humans may have reached North and South America, looking at routes across the Canadian ice sheet and from Australia across the Pacific. Show more
Dr Alice Roberts travels the globe to discover the incredible story of how humans left Africa to colonise the world, and searches for clues in the Arabian Desert. Show more
Dr Alice Roberts discovers how humans left Africa to colonise the world. In Europe, she investigates how our species coped with the rival Neanderthals and the Ice Age. Show more
Dr Alice Roberts discovers how humans left Africa to colonise the world. In Asia, she investigates how early hunter-gatherers survived in the Arctic region of northern Siberia. Show more