This interactive scatter plot visualizes the Iris Dataset, displaying petal length against sepal width. Each point is colored by species, with a color legend on the right. Hovering over a legend item fades all non-matching points, highlighting only the selected species, while hovering over data points reveals their values via tooltips. Built with React and D3 v5, it uses `scaleLinear` for axes, `scaleOrdinal` for colors, and custom React components for rendering SVG marks, axes, and the interactive legend.