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Mystery of the first Americans
Why the first people to reach the Americas weren't ancestors of today's native Americans
Evidence that the first people to reach the Americas weren't the ancestors of today's native Americans. The specialised ear of the prehistoric legged-fish ichthyostega precludes it from being regarded as a direct but distant ancestor of man. Why scientists are still investigating the coronavirus that caused the recent Sars (severe acute respiratory syndrome) outbreak. Scientists studying strategy games.
91热爆 World Service Archive
This programme was restored as part of the World Service archive project
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Science In Action
The 91热爆 brings you all the week's science news.