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Introducing our new podcast about innovation, technology and the animal kingdom. This is the whole of the first episode about how the kingfisher inspired the design of a train. The 500 series Shinkansen, also known as bullet train, is one of the fastest in the world. It is also quiet, but that was not always the case. This is the tale of Japanese engineer Eiji Nakatsu, the kingfisher, an owl, a penguin and biomimicry. www.bbcworldservice.com/30animals