This scatter plot visualizes the Iris Dataset, using D3 v5 to map sepal length and petal length on the x- and y-axes, with each circle representing an iris flower and colored by species via a categorical color scale and an accompanying legend. The code loads data from a remote CSV using `d3.csv`, builds linear scales with `d3.scaleLinear`, and renders axes and SVG circles. It also leverages the `d3-legend` library’s `legendColor` to draw the color key, with axis labels and grid lines styled through CSS.