Biologically accurate robot legs are big stride for science

These robot legs were made for walkin' - and that's just what they do. University of Arizona researchers have come up with a pair of robotic legs capable of striding more accurately, biologically speaking, than any pair of disembodied robotic legs ever before. The legs, which may help us understand how babies learn to walk and could prove useful for people with spinal-cord injuries, imitate not only the mechanics and movements of how people walk, but also the thinking behind walking, replicating a nerve-cell network called the central pattern generator, the BBC reports. Sounds cool - and the video of the legs' sassy strut is even cooler.