This scatter plot visualizes Iris flower measurements, plotting sepal length against petal length while using distinct symbols to encode species. The code uses d3.scaleLinear for both axes, d3.scaleOrdinal with symbolsFill to map species to shapes, and d3.axisLeft and axisBottom for the axes. A custom legend shows the shape-species mapping. Data is loaded asynchronously from a remote CSV using d3.csvParse and rendered with d3.v7 selections.