A robot with an animated segment including a generally cylindrical structural frame. The frame includes a plurality of spaced apart plastic ribs that each have a curved or arcuate body that is arranged to be convex relative to a central axis of the structural frame. A first end of each rib is pivotally coupled with a lower ring, and a second end of each rib is pivotally coupled with an upper ring. A flexible outer covering is positioned over the structural frame and is attached to one or more of the ribs. This provides a robotic segment that is animated with an organic feel and natural movement by providing an actuator in the robot segment that is operated by a controller to move one or both of the rings such as linearly along a central axis of the structural frame (e.g., toward and away from the other ring).