This example displays a scatter plot of penguin measurements, showing flipper length on the x-axis and body mass on the y-axis, with each point colored by species (yellow for Adelie, green for Gentoo, brown for Chinstrap). It uses D3 v5 and renders to SVG within a React environment. The code loads data from a CSV file hosted on GitHub, parses numeric fields, and applies d3.scaleLinear for positioning. Axes are generated with d3.axisLeft and d3.axisBottom, while circles are joined to the data using the join method.