This visualization shows the classic Iris dataset as a scatter plot, mapping petal length on the x-axis against sepal length on the y-axis. It renders circular marks in an SVG canvas using D3 v7’s `scaleLinear`, `extent`, `axisLeft`, and `axisBottom` APIs, with data loaded via `d3.csv` from a GitHub Gist. The plot fills the entire browser window, uses a minimal margin layout, and includes large tick labels for readability.