This interactive scatter plot visualizes the Iris Dataset, plotting petal length against sepal width for three species of iris flowers. Users can hover over a species in the color legend to highlight only those corresponding data points while fading the others. Built with React and D3 v5, the visualization uses `scaleLinear` for axes, `scaleOrdinal` for categorical colors, and SVG circles rendered via React components. The legend interactions manage hover state to dynamically adjust opacity, providing a clear comparison between species.