This scatter plot visualizes the Iris dataset, displaying petal length on the x-axis and petal width on the y-axis, with points colored by species (setosa, versicolor, and virginica). Built with d3.v6, the visualization uses `csv` to load data, `scaleLinear` for axis scaling, and `axisBottom`/`axisLeft` for tick marks. The SVG output renders circles with fixed radius, while the color mapping is handled by a switch statement in the `marker` function.