This interactive scatter plot displays the classic Iris dataset, allowing users to explore relationships between sepal and petal measurements. Two dropdown menus let viewers independently select which numeric column appears on the X and Y axes, triggering smooth animated transitions of the data points and axis scales. Built with D3 v6, the visualization uses `scaleLinear`, `transition` for the 1-second animations, and the `selection.join` API to efficiently manage the SVG circles as data mappings change. Each circle animates its position with a slight per-point delay, creating a cascading effect during updates.