How Do Geckos Walk Upside Down on Glass Without Glue?
壁虎如何不靠胶水就能在玻璃上倒立行走?
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Geckos cling to smooth surfaces using billions of microscopic hair-like structures called setae on their toe pads.
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Each seta splits into hundreds of even tinier spatulae that make contact at the molecular level with surfaces.
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