This scatter plot visualizes iris flower measurements, mapping sepal length and petal length along the axes while using distinct symbols to encode species type. It is built with D3 v7, leveraging `scaleLinear` for axes, `scaleOrdinal` with `symbolsFill` for shape encoding, and `symbolGenerator` to draw marks. The visualization includes a custom shape legend and loads data from a CSV file, then parses numeric fields before rendering.