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Sharks' conventional Gender Roles
Study of global shark DNA shows females remain in home waters while males roam the oceans. Research into making spermless embryos – playing god or a boon for the infertile? Generating your own wind power on a budget. What's the matter with anti-matter?
BBC World Service Archive
This programme was restored as part of the World Service archive project
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Science In Action
The BBC brings you all the week's science news.
