This interactive scatter plot animates through the Iris dataset, cycling the x-axis through petal width, sepal width, petal length, and sepal length while keeping sepal length on the y-axis. Circles are colored by species using custom color mapping. Built with D3 v6, it uses `scaleLinear`, `axisLeft`, `axisBottom`, and `setInterval` to update the chart, with SVG rendering and legend labels added directly to the DOM.