Gravity-Defying Geckos

The secret ability of the gecko is revealed via high powered microscopy: Gravity-Defying Geckos Teach Scientists a Lesson. Seems the gecko is endowed with hundreds of thousands of tiny hairs that can push into and lock onto tiny imperfections and cracks, even in the smoothest of places. Scientists are hopeful this super-velcro can be used as a new adhesive, perhaps by astronauts on space walks.