This interactive scatter plot visualizes the Iris dataset, displaying petal length against sepal width for three iris species. Users can hover over the color legend to highlight a selected species while fading non-matching points, using React state management. The visualization uses d3.scaleLinear and d3.scaleOrdinal for positioning and color encoding, with SVG circles rendered via React components. Data is loaded asynchronously from a CSV using d3.csv, and axes are constructed with custom React components that generate SVG tick marks and labels.