Today on 91av
All the latest on newscientist.com: mind, weather and chemical secrets of the home, violent crime, wildfires and Chernobyl, digital wills and more
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Today on 91av
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Environment
Ferocious lemming roars at predators to scare them off
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Space
Earth’s historical wonders as seen from space
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Today on 91av
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Earth
Monstrous algal bloom erupts in world’s largest lake
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Feedback: What is an irreducibly simple model?
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Right on Q
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Trail of mystery
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