This interactive scatter plot visualizes the Iris dataset, mapping petal length and sepal width along the axes and encoding species with color. Hovering over a legend item highlights the corresponding species’ points while dimming others. Built with React and D3 v5, it uses `scaleOrdinal` for color, `scaleLinear` for positions, and custom React components for axes, marks, and the interactive legend. Data is loaded as CSV and rendered as SVG circles with tooltips.