Doorknocker - Gecko
One of their most famous talents is their ability to scurry along slick surfaces — even glass windows or across ceilings. The only surface that geckos can't stick to is Teflon. Well, dry Teflon. Add water, however, and geckos can stick even to this seemingly impossible surface! They do this through specialized toe pads.
Contrary to popular belief, geckos don’t have “sticky” toes, as if covered with glue. They cling with incredible ease thanks to nanoscale hairs — thousands of them — that line every toe.