This scatter plot visualizes the Iris dataset, mapping petal length and width to the x- and y-axes. Points are colored by species (setosa, versicolor, virginica) using a manual switch statement. The visualization is created with D3 v6, using `scaleLinear`, `extent`, and `axisLeft`/`axisBottom` for axes. Data is loaded from a remote CSV via `d3.csv`, and circles are rendered in SVG, with sepal dimensions also encoded but not visually used.