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New theory of the Rise and Fall of Dinosaurs

Did one meteor impact cause the rise of large dinosaurs another cause their extinction?

New theory proposes that one extraterrestrial impact could have caused the rapid evolution of large dinosaurs 鈥� and another one caused their extinction. Why a new drug under development to treat Alzheimer's disease is targeting amaloid deposits in patients' brains. Interview with Rajendra Pachauri, appointed to replace Robert Watson as the chair of Intergovernmental Panel on Climate Change (IPCC) after the USA pulled out of the Kyoto agreement.

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23 minutes

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主播大秀 World Service Archive

This programme was restored as part of the World Service archive project

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