This fork of a scatter plot example transforms the classic visualization into a reusable area chart that displays the distribution of penguin culmen lengths across three species—Adelie, Gentoo, and Chinstrap. Using the D3.js libraries `bin`, `area`, and `curveBasis`, it groups the data into bins and renders smoothed density-like curves for each species, colored via `scaleOrdinal`. The chart reads from an external CSV dataset, includes axes and labels, and is rendered as SVG, leveraging D3's `select`, `scaleLinear`, and axis APIs for the final interactive display.