Five apples and one lemon sit in a row as SVG circles, colored by type and scaled by radius. Hovering any fruit highlights it with a black stroke and triggers a callback to update the selection state. Entering, updating, and exiting fruits are animated through `transition().duration(1000)` on radius and x-position. The example uses D3 v5 with `scaleOrdinal`, data joins, and ES6 modules, driven by timed state changes that eat and replace fruits.