Chutney challenge
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Environment
Whale’s bacterial stowaways reveal how stressed it is
This unfortunate humpback whale swam all the way from Alaska to Hawaii tangled in fishing gear – but its stress has taught us a lot about whale health
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Today on 91av
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Life
Physics-minded crows bring Aesop’s fable to life
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Feedback: Stuff in its place
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Faster than the wind
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