This example visualizes the Iris flower dataset as a scatter plot, showing the relationship between petal length and sepal width for individual samples. Using React with d3.scaleLinear for both axes and d3.extent for domains, the plot renders SVG circles with native tooltips via <title> elements. The code loads CSV data through d3.csv, formats tick labels with d3.format, and includes custom axis components. A loading state displays "Loading..." text while the data fetch is in progress.