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Sex
Sex might just be about reproduction - but it's not. It's about a special kind of reproduction that re-shuffles the genes, every generation. But why, in evolutionary terms, does it cost so much?
Presented by Tracey Logan.
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大象传媒 World Service Archive
This programme was restored as part of the World Service archive project
Space
The eclipses, spacecraft and astronauts changing our view of the Universe
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Discovery
Explorations in the world of science.