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The Perils of Prospecting for Gold

Gold prospecting; maize enlists wasps when attacked by armyworm catepillars; "it's on the tip of my tongue" and other signs of ageing; analysing meteorites; why some bat colonies make two echo calls.

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28 minutes

麻豆官网首页入口 World Service Archive

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

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