This scatterplot uses D3 v5 to visualize the relationship between culmen length and culmen depth in penguins. The SVG chart displays data points as colored circles, with linear scales mapping the measurements to x and y axes. The code employs `scaleLinear`, `extent`, and `axisBottom`/`axisLeft` functions to construct the axes and plot. Data is loaded as CSV from a GitHub gist, with numeric values parsed before rendering. The chart includes axis labels and a title, styled through external CSS.