This visualization displays the classic Iris dataset as a scatter plot, mapping petal length and width along the axes while also encoding sepal measurements through the horizontal and vertical radii of each circular marker. The three Iris species—setosa, versicolor, and virginica—are distinguished by fill color. Built with D3 v6, it uses `d3.csv` for data loading, `d3.scaleLinear` for axis scaling, and `d3.axisBottom` and `d3.axisLeft` for chart furniture, rendering in SVG with the `join` operator for circle generation.