This visualization displays an interactive scatter plot of the Iris dataset, mapping sepal length against petal length. Each of the three iris species is represented by a distinct symbol shape, with a custom legend identifying the species categories. The implementation uses D3 v7 APIs including `scaleLinear`, `scaleOrdinal`, and `symbol` to generate the marks, while `axisLeft` and `axisBottom` render the labeled axes. Data is loaded asynchronously from a CSV file via `csvParse` and rendered within a full-window SVG canvas.