This scatter plot visualizes the Iris dataset, distinguishing three flower species with colored circles: skyblue for setosa, lightgreen for versicolor, and orange for virginica. The chart plots petal length on the x-axis and petal width on the y-axis, while also encoding sepal length and sepal width as non-standard circle attributes. Built with D3 v6, it uses `scaleLinear`, `extent`, `axisLeft`, and `axisBottom` to map data values to SVG coordinates. The code loads CSV data from a GitHub gist and renders circles with fixed radius of 5 pixels on an SVG canvas.