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Available for over a year
This week Quentin Cooper investigates the psychology that turns a peaceful protest into a rioting mob. He hears about a major international study that is tracking down the genetic background to multiple sclerosis. As a new documentary is released about Project Nim, he revisits the classic experiment to bring a chimpanzee up like a human child. And he learns how Amazon tribes shrank human heads. Producer: Martin Redfern.
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