Which natural world phenomenon inspired the design of self-cleaning exterior paint now used on many eco-friendly buildings?

Biomimicry—the practice of emulating nature's strategies in human design—has revolutionized product development across industries. From velcro (inspired by burrs) to bullet trains (kingfisher beaks), nature's 3.8 billion years of R&D offers incredible innovation templates. This poll tests your knowledge of groundbreaking natural world-inspired product designs that have transformed sustainability and efficiency in everyday items.

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

Lotus leaf's water-repelling microscopic texture
Spider web's tension-distribution properties
Butterfly wing's light-reflecting scales
Chameleon's color-changing skin cells