Which famous product was designed after its inventor observed the structure of burrs that stuck to his dog's fur during a hunting trip?

Biomimicry is revolutionizing product design by drawing inspiration from nature's solutions to complex problems. Many successful products have been developed by studying natural structures, processes, and systems that have evolved over millions of years. This trivia question tests your knowledge about how a famous product was designed based on observations from the natural world.

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Velcro fasteners
Speedo Fastskin swimsuits
Shinkansen bullet train nose design
WhalePower wind turbine blades