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A new way to kill cancer tumours; threats to biodiversity; and the language of maths
BBC World Service Online
HIV vaccine failure; a Russian science feud; private space rockets; mammoth extinction
The world's rarest bird; polar thaws; a gene for speech and why sprinters run so fast.
Small earthquakes could be aftershocks from quakes 100's of years ago;is nanomedicine safe
Gene therapy treats blindness; flu evolution; detection of nuclear explosion; oldest star