This scatter plot displays the Iris dataset, mapping petal length and petal width on the axes while coloring each point by species (setosa, versicolor, or virginica). The visualization encodes sepal length and width as the `rx` and `ry` radius properties of each circle, effectively creating ellipse-like markers. Built with D3 v6, the code loads CSV data via `d3.csv`, uses `scaleLinear` and `extent` for scaling, and renders SVG circles with `selectAll` and `join`. Axis labels are added manually, and the plot fills the entire browser window.