Roboticist David Zarrouk’s and his team’s SAW (or “Single-Actuator Wave“) robot is both completely awesome, and serious nightmare fuel. This innovative robot can move on land or in water by wriggling its 3D-printed spine, and uses just a single motor to shimmy about.
Look away if you don’t like creepy crawlies. You’ve been warned. Back in 2012, YouTuber gurutek was breaking down his saltwater fish tank when he discovered that a Eunice worm had been lurking beneath the gravel, where it had grown to a horrifically large size.