This interactive scatter plot displays the Iris dataset, mapping sepal length against petal length while encoding species through distinct symbol shapes. The visualization uses d3.scaleLinear for both axes and d3.scaleOrdinal with d3.symbolsFill to assign unique geometric markers to each species. A custom legend, built with d3.symbol, explains the shape-to-species mapping. The code leverages d3.csvParse to load remote data and d3.axisLeft/axisBottom for labeled axes, with axes and legend implemented as reusable functions.