This scatter plot visualizes the Iris dataset, mapping petal length on the x-axis and sepal length on the y-axis. Points are colored by species (Setosa, Versicolor, Virginica) with a legend above the chart. The visualization uses D3 v5’s `scaleLinear`, `extent`, `axisLeft`, and `axisBottom` to render an SVG, loading CSV data via `d3.csv`. The code appends circles with `selectAll` and `join`, and styles axes and titles using custom colors and font sizes.