Overview: The natural world was transformed when one great ape began to walk upright - us. But why has this led to the development of our extraordinary brains?
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First Air Date: Nov 20, 2002Last Air date: Feb 05, 2003Season: 1 SeasonEpisode: 10 EpisodeRuntime: 50 minutesQuality: HDIMDb: 8.30 / 10 by 42 usersPopularity: 20.348Language: English