This scatter plot visualizes the Iris dataset, displaying petal length on the x-axis and petal width on the y-axis for three iris species. Each circle represents a single flower, with distinct colors assigned to setosa, versicolor, and virginica species. The visualization uses d3.scaleLinear for axis scaling and d3.extent for domain calculation, with the SVG canvas sized to the browser window. Data is loaded from a remote CSV file using d3.csv, and the axes are rendered using d3.axisBottom and d3.axisLeft. The Iris dataset comes from a gist hosted by the author.