This interactive scatter plot displays the Iris dataset from UCI Machine Learning Repository, showing all pairwise comparisons between sepal and petal measurements. Users can change which measurements appear on the x and y axes via dropdown menus. The visualization uses d3.scaleLinear for axes, d3.scaleOrdinal for species colors, and d3.axisBottom/axisLeft for tick marks, rendering circles as SVG elements. Data loads asynchronously via d3.csv from the iris dataset.