This D3.js scatter plot visualizes the Iris dataset, mapping petal length on the x-axis and petal width on the y-axis, with each point colored by species (setosa, versicolor, virginica). The plot uses SVG circles with a fixed radius, while the data also includes sepal measurements. Built with D3 v6, it leverages `d3.csv` for data loading, `scaleLinear` for scaling, and `axisBottom`/`axisLeft` for axes, rendering interactively within a full-window viewport.