It may be difficult to picture a tortoise actually beating a hare in a race, but it turns out Aesop was right after all. Research shows speedy animals are much slower in the long run.
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.