An animated scatter plot of the classic Iris dataset cycles through the four flower measurements on each axis. The D3.js visualization renders colored circles distinguishing iris species and updates every few seconds, rotating which measurement is plotted on the x-axis. The reusable `scatterPlot` function handles scaling, axes, and marks, while the main script appends legends, labels, and a title. Data is loaded from a GitHub-hosted CSV using D3's `csv` method, with SVG rendering and a `setInterval` timer driving the animation.