Bat and visual aid
30 Animals That Made Us Smarter - Un pódcast de BBC World Service
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Click, click, click! The bat’s 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 #30animals
