This scatter plot visualizes the Iris dataset, showing petal length and width for three species of iris flowers, each colored distinctly. The visualization uses D3 v6 within a plain HTML page, employing `d3.scaleLinear` for axes, `d3.axisLeft` and `d3.axisBottom` for tick marks, and SVG circles for data points. Data is loaded asynchronously from a CSV via `d3.csv` and parsed into numeric values. The plot encodes species identity through color, with a simple switch statement mapping each species to a specific hue.