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Environment
Languorous lemur hibernates through tropical winter
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Warning of polio epidemic in Africa
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Snorted virus dampens rats’ cocaine high
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Early hominid ears primed for speech
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Life
A new role for stem cells
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Superbugs resist “last resort” antibiotics
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Test to predict menopause revealed
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Mutant human stem cell lines created
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Dog’s verbal tricks probe origin of language
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Gene may predict killer prostate cancers
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Locust swarms may spiral into plague
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Mass measles immunisation launches in Sudan
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