This scatter plot visualizes the Iris dataset, showing sepal length against petal length, with each of the three species represented by a distinct symbol shape and a corresponding legend. The visualization uses d3.scaleLinear for the x and y axes, d3.scaleOrdinal with d3.symbolsFill for species-based shapes, and d3.axisLeft and d3.axisBottom for the axes. Data is loaded asynchronously via fetch and parsed with d3.csvParse.