This D3 v7 scatter plot visualizes the relationship between sepal length and petal length in the Iris dataset, using different shapes to represent the three species. The visualization employs `scaleLinear` for the x- and y-axes, `scaleOrdinal` with `symbolsFill` to map species to distinct symbols, and the `symbol` generator to draw the marks. The chart includes labeled axes and a shape legend. Data is loaded from a remote CSV file, parsed with `csvParse`, and rendered within a full-window SVG.