This scatter plot shows the relationship between penguin flipper length and body mass, with each point colored by species (Adelie, Gentoo, and other, rendered as red). The visualization uses D3 v5’s `scaleLinear`, `extent`, `axisLeft`, and `axisBottom` to map data from a CSV file fetched via `d3.csv`, and renders circles as SVG elements. The code calculates x and y positions from the raw numeric fields and applies a custom color function per species, with axes and labels styled via CSS and SVG text elements.