This scatter plot displays the Iris dataset, mapping sepal length against petal length, with each point's shape indicating the species of iris. The visualization uses D3 v7 functions including `scaleLinear`, `scaleOrdinal`, `symbolsFill`, and `symbol` to generate the marks. A custom `shapeLegend` ES6 module renders a legend for the species categories, while the `axes` module creates labeled axes for both dimensions. Data is loaded from a remote CSV file and parsed using `csvParse`.