Five pieces of fruit are rendered as color-coded circles in an SVG, with apples in red and lemons in yellow. Hovering over a circle highlights it with a black outline, and moving the mouse away removes the highlight. The visualization uses D3 v5's data join with key functions to smoothly transition circles entering, exiting, and updating, animating radius and position over one second. State changes, such as eating or replacing fruit, are triggered by timed events, with selection managed through React state and callbacks.