This scatter plot visualizes the Iris dataset, mapping petal length on the x-axis and petal width on the y-axis, with each point colored by species (setosa, versicolor, or virginica) and sized by sepal measurements. Built with D3 v6, the SVG rendering uses scaleLinear for axes, axisBottom and axisLeft for ticks, and the csv loader to fetch data from a GitHub gist. Circles are appended via selectAll and data joins, with markers assigned through a switch statement on species.