This example visualizes the Palmer Penguins dataset as a scatter plot, mapping flipper length to body mass for each observation. Each data point is drawn as an ellipse, with its horizontal and vertical radii derived from bill length and bill depth, respectively, and colored by species (Adelie, Gentoo, or Chinstrap). The code uses D3 v5’s `csv`, `scaleLinear`, `extent`, `axisLeft`, and `axisBottom` to load data, scale axes, and render SVG circles via data joins. Axis labels and a title are appended as SVG text elements.