This interactive scatter plot of the Iris dataset allows users to explore relationships between sepal and petal measurements using dropdown menus to select variables for the x and y axes. The color legend for species is interactive: hovering over a legend item fades all other points to 20% opacity, highlighting the selected species in SVG circles rendered with React. The visualization uses d3-scale for linear and ordinal scales, d3-format to tick labels, and react-dropdown for the axis selectors, with CSV data fetched from a GitHub gist.