Stanford University researchers have developed a spider-like drone capable of clinging to walls, thanks to innovative “micro-spines” that create an opposing grip, enabling the craft to sit on rough, outdoor surfaces. Security companies could use these to monitor of typically hard-to-reach areas, or on rescue missions for detecting damaged areas in dangerous terrain. Simply put, when the drone approaches a vertical surface, it pivots on its “tail-spine” to line itself up with the landing area. A thruster then pushes it into the surface and deploys the landing gear, while micro-spines create two opposing grips, counterbalancing the vehicle’s movement as well as providing a grasping force. Click here to view the first image in today’s viral picture gallery. Continue reading for the five most popular viral videos today, including one showing fourteen Pokemon you didn’t realize were based on real animals.