This scatter plot visualizes the Iris dataset, mapping sepal length against petal length and using distinct symbol shapes to represent the three flower species. The visualization is built with D3 v7, using scaleLinear for the axes, scaleOrdinal with symbolsFill for the shape encoding, and a custom axes module that calls axisLeft and axisBottom. A shape legend, positioned at fixed coordinates, translates the symbol markers to species names. Data is loaded asynchronously from a raw GitHub CSV file and parsed with csvParse.