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Spider silk delivers finest optical fibres
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Grasshopper deaths send biobatteries back to square one
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Bacteria, viruses鈥t’s all the same to D6R
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Climate modellers overlook crucial factor in warming
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Subtle gene therapy tackles blood disorder
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Pig’s teeth grown in rats’ bellies
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Spermicide offers no HIV protection
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West Nile vaccine “in three years”
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Killer flu can result from a single mutation
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Mitochondria can be inherited from both parents
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Modified pigs are transplant ‘breakthrough’
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Passive smoking kills pets too
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