Gecko and ant

Why Spider-Man can鈥檛 exist: Geckos are 鈥榮ize limit鈥 for sticking to walls

18 January 2016

Latest research reveals why geckos are the largest animals able to scale smooth vertical walls 鈥 even larger climbers would require unmanageably large sticky footpads. Scientists estimate that a human would need adhesive pads covering 40% of their body surface in order to walk up a wall like Spider-Man, and believe their insights have implications for the feasibility of large-scale, gecko-like adhesives.

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