Robot belly-dancer:

Jimmy Or has created a squat, shimmying robot with a flexible spine called Waseda Belly Dancer No. 1. It has so far mastered a particularly difficult belly-dancing move, the Camel, which involves sending waves rippling along the torso. [...]

To generate the robot's undulations, Or borrowed a computer program built by Swedish researchers that simulates a network of nerves in the lamprey called a central pattern generator (CPG). The CPG directs the lamprey's movements without the help of the brain or sensory feedback. [...]

Or maintains that robots with a flexible spine have a future. "A robot that can bow is very important in Japanese society."