This scatter plot visualizes the Iris dataset, showing sepal length versus petal length for three flower species. The visualization uses d3.v7 with scaleLinear for axes, scaleOrdinal with symbolsFill to encode species as different point shapes, and a custom legend. Data loads asynchronously from a GitHub-hosted CSV file, parsed with csvParse, with axes and shape legends created via reusable D3 modules. The plot updates automatically when the data arrives.