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World Service,27 Jun 2002,23 mins

Why Birth Weight Matters

Science In Action

Available for over a year

The cause of low birth weight in some babies lies in the placenta. Low-birthweight in mice found to have a genetic component involving a growth factor. How caffeine can kill slugs and snails. The sounds of a distant star. Fossilised bird-like footprints discovered in Argentina are more than 210 million years old.

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