A scatter plot visualizes the Iris dataset, showing petal length against petal width for each flower, with points colored by species (skyblue for setosa, lightgreen for versicolor, orange for virginica). The code, built with D3 v6, loads data via `d3.csv` from a GitHub gist, scales with `scaleLinear`, and renders SVG circles with `axisLeft` and `axisBottom`. It also stores sepal measurements in each point’s attributes but does not display them.