This scatter plot visualizes the Palmer Penguins dataset, mapping flipper length on the x-axis against body mass on the y-axis for all observed penguins. Each circle is color-coded by species, with colors distinguishing Adelie, Chinstrap, and Gentoo penguins. The visualization is rendered as an SVG using D3 v6, employing `scaleLinear`, `extent`, `axisLeft`, and `axisBottom` to construct the axes. The code loads CSV data via `d3.csv`, parses numeric fields, and uses `selectAll` with `join` to create circles sized with a fixed radius.