This scatter plot visualizes the Iris dataset, mapping sepal length on the x-axis and petal length on the y-axis, with species distinguished by different symbol shapes. Built with D3 v7, it uses d3.scaleLinear for axes, d3.scaleOrdinal with d3.symbolsFill for shape encoding, and d3.symbol to render marks. A custom shape legend displays species labels, while d3.axisBottom and d3.axisLeft generate the axes. Data is loaded asynchronously from a CSV file and parsed with d3.csvParse.