This scatter plot visualizes the Iris dataset, mapping sepal length on the x-axis against petal length on the y-axis for three iris species (setosa, versicolor, and virginica), each distinguished by color. Built with D3.js v7, it uses `d3.scaleLinear` for both axes, `d3.scaleOrdinal` for species-based coloring, and SVG circles with fixed radius and opacity. The visualization includes axis labels and a manually positioned legend, with data loaded asynchronously via `d3.csv` from a GitHub gist.