This scatter plot visualizes the Iris dataset, mapping petal length and width for each flower sample. Circles are colored by species—sky blue for setosa, light green for versicolor, and orange for virginica—revealing distinct clusters. The example loads data from a remote CSV file using the `d3.csv` function, then renders the chart as an SVG. It uses `d3.scaleLinear`, `d3.extent`, `d3.axisLeft`, and `d3.axisBottom` to create the scales and axes, with the `select` and `join` pattern to bind data to circle elements.