This scatter plot visualizes the Iris dataset, mapping petal length and width for each sample while color-coding points by species (setosa, versicolor, virginica). The visualization uses D3 v6’s `scaleLinear`, `extent`, `axisLeft`, and `axisBottom` APIs to construct the axes, with raw SVG circles for marks. Data is loaded asynchronously via `d3.csv` from a remote GitHub gist, and point color is determined by a switch statement on species. The chart adapts to the browser window’s dimensions, with labeled axes for petal and sepal measurements.