This interactive scatter plot visualizes the Palmer Penguins dataset, showing bill length against bill depth for three penguin species. The SVG visualization uses React with D3 scales (`scaleLinear`, `scaleOrdinal`) to position circles colored by species. A color legend on the right implements hover interaction: mousing over a species name fades all other points to 20% opacity while highlighting the selected species. The chart includes formatted axes and a native SVG tooltip via the `<title>` element, with data loaded asynchronously from a remote CSV using `d3.csv`.