This visualization displays the Iris dataset as a scatter plot, mapping petal length on the x-axis and petal width on the y-axis, with points colored by species (setosa, virginica, and versicolor). It uses d3.csv to load the data, d3.scaleLinear for axes, and d3.axisLeft and d3.axisBottom to render the scales. Circles are drawn with SVG via d3.selectAll and .join, with dimensions derived from sepal length and width for additional context. The code runs in a vanilla HTML page with D3 v6, using window dimensions for a full-screen responsive layout.