This animated scatter plot visualizes the Iris dataset, cycling through four flower measurements (petal width, sepal width, petal length, sepal length) on the x-axis while keeping sepal length on the y-axis. Data points are colored by species using orange, blue, and black marks. The example demonstrates a reusable scatter plot component built with D3 v6, using `d3.csv` for data loading, `d3.scaleLinear` and `d3.extent` for scaling, and `d3.axisLeft` and `d3.axisBottom` for axes. A `setInterval` updates the x-value mapping, triggering re-renders with SVG circles and a custom legend.