This interactive scatter plot visualizes Fisher's Iris dataset, comparing sepal length and width across three species with distinct BBC-style colors and hover highlighting. Using D3.js v7, it implements responsive sizing via ResizeObserver and renders SVG circles with configurable radii, opacity, and stroke. The visualization includes axis labels, a legend that filters points on mouseenter, and additional petal dimensions mapped but not displayed. Data loads asynchronously from a remote CSV using `d3.csv`.