This scatter plot visualizes the Iris dataset, showing sepal length against petal length for three flower species. Each species is distinguished by a distinct symbol shape, with a legend explaining the mapping. The visualization uses D3 v7's `scaleLinear`, `scaleOrdinal`, and `symbol` APIs to position points and generate shapes, with axes created via `axisLeft` and `axisBottom`. Data is loaded asynchronously from a CSV file and parsed with `csvParse`.