This scatter plot visualizes the Iris dataset, mapping petal length and petal width as the primary axes while encoding sepal length and sepal width into the ellipse-shaped markers’ horizontal and vertical radii. Each species (setosa, versicolor, virginica) is distinguished by color, with pink, black, and yellow fills respectively. Built with D3 v6 and React, it loads CSV data asynchronously, uses `scaleLinear`, `extent`, and `axisLeft`/`axisBottom` to construct the axes, and renders SVG circles with dynamic `rx` and `ry` attributes. The visualization fills the browser window, with axis labels rotated and styled via CSS.