This scatter plot displays the relationship between sepal length and petal length for iris flowers, with each point’s shape encoding the species. The visualization loads the iris dataset from a GitHub-hosted CSV file and parses it using `d3.csvParse`. It builds the plot with `d3.scaleLinear` for both axes, `d3.scaleOrdinal` with `d3.symbolsFill` for shape mapping, and renders marks via `d3.symbol` with a size of 200. The chart includes labeled axes and a custom shape legend, using the `axes.js` and `shapeLegend.js` modules.