This scatter plot visualizes the Iris dataset, mapping petal length against sepal length. Points are colored by species using a viridis-like ordinal scale, with a legend showing the species categories. The visualization is rendered as an SVG using D3 v6, employing `scaleLinear` for axes, `axisLeft` and `axisBottom` for tick marks, and `select` to build the chart. Data is loaded via `csv` from a remote URL, with margin-based positioning and custom label styling.