A cartoon face rendered in SVG animates its eyebrows in a looping sequence. The example builds the face from D3 shape primitives, including circles for the head and eyes, and an arc for the mouth, all positioned with a central translation. Using D3 v5's `select` and `arc`, it demonstrates chained `transition` calls to repeatedly move the eyebrow group up and down over two-second intervals. The code imports these D3 features via ES6 modules, with the library loaded from UNPKG and the visualization drawn to an SVG element.