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Bonus 4: Woodpecker and black box
The last bonus episode of our new podcast. For more, search for 30 Animals That Made Us Smarter and subscribe. Or find it here: www.bbcworldservice.com/30animals
This one is about a bird’s remarkable skull and the quest to protect aeroplane flight recorders.
#30Animals
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50 Things That Made the Modern Economy
The stories of inventions, ideas and innovations which helped create the economic world
