Human Journey

Anthropologist Dr. Alice Roberts travels to Africa in search of the birthplace of the first known people. She begins her research for how humans left Africa to colonize the world by searching for clues in the Arabian Desert.

Dr. Alice Roberts' journey continues into Asia on her quest to discover how early hunter-gatherers managed to survive in one of the most inhospitable places on earth -- the Arctic region of northern Siberia.

The peak of the Ice Age was approaching when humans first arrived in Europe, where a stronger, smarter species already lived. Dr. Alice Roberts investigates how the new arrivals survived the Neanderthals and the deep freeze.

Miraculously preserved footprints and very old human fossils buried in the outback suggest a mystery -- that humans reached Australia almost before anywhere else. Now, Dr. Alice Roberts is investigating how they could have traveled so far from Africa.

For Stone Age people, reaching North and South America seemed impossible. Now Dr. Alice Roberts researches how they made it despite vast oceans on either side and an impenetrable ice sheet covering the north.