Two coordinated scatterplots display the classic Iris dataset, comparing sepal and petal measurements across the three species. Each circle is positioned by one pair of measurements, with point size encoding a third measurement and color encoding species. Built with D3 v4 and SVG, the plots use linked hover interactions—hovering a point in either chart highlights the corresponding point in both—by filtering all circles with matching data. Axes are automatically scaled from the data, and a tooltip is prepared for detail display, though it is not fully implemented. The two charts share the same color scale for species, facilitating cross-comparison of the dataset's four numerical variables.