This scatter plot shows the relationship between sepal length and petal length for Iris flower samples, with points shaped by species. The visualization uses D3 v7’s `scaleLinear`, `scaleOrdinal`, and `symbol` APIs to map continuous measurements and categorical species to positions and marker shapes. A custom legend displays the species-to-shape mapping, while axis labels are added via `axisLeft` and `axisBottom`. Data is loaded from a remote CSV using `csvParse` and rendered as SVG paths.