This scatter plot visualizes the relationship between flipper length and body mass for three penguin species, with color encoding for species and point size reflecting bill dimensions. Built with React and D3 v5, the visualization uses `d3.csv` to load the Penguin dataset, `scaleLinear` for axis scaling, and SVG `circle` elements for marks. The code maps bill length and depth to the `rx` and `ry` attributes, creating elliptical points that vary per observation. Axis labels and custom fonts are rendered through SVG text elements, with the plot centered on screen.