Uploaded December 2025 | Updated September 2026, 2 weeks ago

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Professor Alice Roberts and biologist Dr George McGavin continue their journey back into our evolutionary past to understand how humans first started walking up straight. With this journey, they meet one of our earliest prehistoric ancestors, Lucy, from a 3.2 million year old species called Australopithecus afarensis - the first recorded species to trade life in the trees for life on the ground.

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Taken from Prehistoric Autopsy (2012)

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