Which natural structure directly inspired the redesign of Japan's Shinkansen bullet train, significantly improving its aerodynamics and energy efficiency?

Biomimicry has revolutionized how scientists approach product design by studying and emulating nature's time-tested patterns and strategies. This engineering approach has led to groundbreaking innovations across multiple scientific fields. Test your knowledge about one famous example that transformed an entire industry through careful observation of natural phenomena!

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Kingfisher's beak
Shark skin
Honeycomb structure
Spider web tensile patterns