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Human Spark, The 3x54

Three and a half billion years of evolution has produced uncountable billions of living species. But only one—humans—can think in symbols; recombine those symbols into infinite meanings; invent a technology to disseminate the message; worry how others might react to it; ponder the past; speculate about the future; and imagine the unknown. The Human Spark, a three-part series hosted by actor, author, and science buff Alan Alda, brings Alda’s trademark humor and curiosity to an exploration of the latest scientific research into what differentiates us from all other species.