This scatter plot visualizes the Iris dataset, displaying petal length against petal width, with points colored by species (setosa, versicolor, virginica). The chart uses D3.js (v6) with the `csv`, `scaleLinear`, `extent`, `axisLeft`, and `axisBottom` APIs to load, scale, and render the data as SVG circles. It also reads sepal measurements for each point, though only petal dimensions position the marks. The plot includes labeled axes and a legend-like color mapping determined by species.