This example shows a scatter plot of penguin data, mapping flipper length on the x-axis and body mass on the y-axis, with points colored by species (Adelie, Gentoo, or other). The visualization loads a CSV from a GitHub gist using `d3.csv`, parses numeric fields, and renders SVG circles positioned via `d3.scaleLinear` and `d3.extent`. It uses `d3.axisBottom` and `d3.axisLeft` for axes, with cursive font styling and custom labels. The code also applies `rx` and `ry` attributes from bill measurements, though these do not visibly alter the circle shape.