This interactive scatter plot visualizes the Iris dataset, showing petal length against sepal width for three iris species, color-coded and accompanied by a legend. Hovering over a legend item dims all points except those belonging to that species. Built with React and D3 v5, it uses `scaleLinear`, `scaleOrdinal`, and `extent` for scales, with custom SVG axes and a color legend. Data is loaded via `d3.csv` from a GitHub gist.