This interactive scatter plot visualizes the Iris dataset, cycling through different measurement pairs on the x-axis to compare petal and sepal dimensions. Built with D3.js v6, the reusable `scatterPlot` module uses `scaleLinear`, `axisLeft`, and `axisBottom` for axes, while `setInterval` drives the animation. Circles are colored by species?setosa in skyblue, versicolor in lightgreen, and virginica in orange?with a legend and axis labels updated dynamically. The example demonstrates custom SVG rendering, data parsing from a remote CSV, and a modular chart structure.