This visualization displays the Iris dataset as a scatter plot, mapping sepal length to the x-axis and petal length to the y-axis. Each point’s shape encodes the species, with a legend identifying the three categories. Built with D3 v7, it uses `d3.scaleLinear` and `d3.scaleOrdinal` for scales, `d3.symbol` for marker shapes, and custom axis and legend functions. Data is fetched as CSV from GitHub and parsed with `d3.csvParse`, then rendered using D3’s data join pattern.