I love it when nature inspires technology. A group of researchers has developed a glove that will allow humans to stick to and scale walls. This bit of amazingness is being modeled on the feet of geckos.
Unlike tree frogs, whose sticky toe pads give these amphibians the ability to cling to surfaces, gecko toes instead use friction created by microscopic hair-like structures called setae that hold up the animal's body weight.
This adaptation has been studied before, but so far physics and gravity have prevented any practical application for human use. We're simply too large and heavy. That has all changed now based on the work of Michael Elliot Hawks of Stanford University, who has developed a synthetic nano-fiber "setae" that can hold the weight of a human.
If and when these become available to the public, I'm definitely adding them to my wish list!