This interactive scatter plot displays the Iris dataset, allowing viewers to select which of the four flower measurements appear on the x- and y-axes via dropdown menus. The implementation uses D3 v5 with custom reusable functions for the scatter plot, dropdown menu, and color legend. Circles represent individual flowers, colored by species, and animate into position over two seconds when rendered. Axes include gridlines, and the color legend uses D3's ordinal scale with the category10 color scheme.