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Bat and visual aid
Click, click, click! The bat鈥檚 navigational skills could be life changing to people who are blind. Daniel Kish has mastered the art of echolocation and can navigate by tongue clicking. In this podcast, you can try too. With Patrick Aryee.
www.bbcworldservice.com/30animals
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Podcast
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30 Animals That Made Us Smarter
Amazing things humans have learnt from animals.
