This 3D scatter plot visualizes the Palmer Penguins dataset, showing the relationship between body mass, culmen length, and flipper length for three penguin species. D3 loads the CSV data, while Plotly’s `scatter3d` type renders the WebGL-powered interactive plot. Each species is color-coded via a custom colorscale (blue, orange, yellow), with white-outlined markers and semi-transparent axis backgrounds for depth perception. The plot uses Plotly’s `newPlot` API within a minimal HTML layout.