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Bartering Orangutans

Can orangutans learn to deal with money? Astronomer Dennis Ashton tries counting all the stars in the Universe. Nasa launches a space satellite to measure space weather. Plus, why do some tunes stick in your head?

Presented by Gareth Mitchell.

Picture: Young Orangutan, Credit: Thinkstock

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14 minutes

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成人论坛 World Service Archive

This programme was restored as part of the World Service archive project