A scatter plot compares sepal length to petal length across 150 Iris flowers from the classic Fisher dataset, distinguishing three species by marker shape. The plot uses the full browser viewport and includes axis labels for both measurements, with a shape legend on the right identifying each species. Implemented with D3 v7, the visualization uses `scaleLinear` for axes, `scaleOrdinal` with `symbolsFill` for shapes, and `csvParse` to load and convert the remote `Iris.csv` data before rendering marks as SVG paths.