@Iluviaporos - Actually they are a really good example of the extraordinary abilities that a lot of animals have as well.
In fact when my science class kept a gecko as a pet, my teacher had us speculate on how they managed to stick their feet to almost any surface and how they could practically walk upside down on glass.
No one in the class got it right. Most people thought it was something sticky or maybe by suction. But, in fact it is by using Van der Waals force, which is the attractive force between molecules.
In fact, they might be basing astronaut shoes on gecko feet, which I think is really cool. And it was very cool learning about it as a kid with an actual gecko hanging there as an example.