This scatter plot displays the relationship between sepal length and petal length for the Iris dataset, with points colored and shaped by species. The plot is built using D3 v7’s modular APIs, including `scaleLinear` for axes, `scaleOrdinal` with `symbolsFill` for shape mapping, and a custom `axes` module for labeled axes. A separate legend, created with `symbol` and `tick` elements, clarifies the species symbols. Data is fetched from a remote CSV and parsed with `csvParse`, while the chart’s size adapts to the browser window.