The Our Changing World opening theme is made up of 18 sounds that appeared on the show during 2012 and 2013. The 15th mystery sound is a rat gnawing a banana chip, from a story about self-control and the brain.
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<iframe src="https://www.radionz.co.nz/audio/remote-player?id=20152466" width="100%" frameborder="0" height="62px"></iframe>
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