This scatter plot visualizes Iris flower measurements, plotting sepal length against petal length while using different shapes to distinguish between species. The visualization loads the Iris dataset from a remote CSV file using `csvParse`, then renders the points with `d3.symbol` glyphs. A shape legend identifies each species, while `d3.scaleLinear` and `d3.scaleOrdinal` handle the continuous axes and categorical shape mapping. The chart includes labeled axes and a legend positioned within the SVG canvas.