A scatter plot of the Iris dataset shows how petal length and sepal width relate across three flower species, with a color-coded legend that filters data points on hover. Built with React and rendered as SVG using D3 v5 scales (`scaleLinear`, `scaleOrdinal`), the visualization uses circle marks and interactive legend ticks that fade unrelated points. The legend and axes are constructed from reusable components, and the data is loaded via D3’s CSV parser.