Five circles representing fruit appear in a row, and clicking one highlights it with a black outline. The scene animates over time: a fruit is removed after one second, an apple changes into a lemon after two seconds, and another fruit is removed after three seconds. The example uses D3 v7 with `d3.select`, `d3.range`, and `d3.scaleOrdinal` to manage colors and radii, while SVG `<circle>` elements are added, updated, and removed via `transition().duration()` for smooth animations.