This interactive visualization displays the classic Iris dataset as two linked scatter plots, enabling users to explore relationships between sepal and petal measurements. Both plots map sepal length and petal length to their axes, with points colored by species. A brush selection in the left plot dynamically zooms the right plot to the corresponding data interval, allowing for detailed comparison of specific subsets. The implementation uses d3.v3 for rendering SVG graphics and a custom functional reactive model (model.js) to manage dependencies between the data, axes, and brush interactions.