Researchers have found Spider-Man would need much larger hands and feet if he were to scale walls in real life. That's because the superhero – and any human for that matter – would need a much larger body surface area equipped with far more sticky footpads to support his weight. That's why geckos are the largest animals able to scale smooth vertical walls.
Spider silk may be delicate looking, but it is known for its strength and durability. And it's these stunning properties that have inspired researchers at Polytechnique Montreal to channel their inner Spiderman and create a new, ultra-tough fiber.