This animated scatterplot cycles through four Iris flower measurements, plotting petal width, sepal width, petal length, and sepal length on the x-axis while sepal length remains on the y-axis. The visualization uses D3.js modules imported via UNPKG, including `scaleLinear`, `axisLeft`, `axisBottom`, and `csv` for data parsing, with a custom `scatterPlot` function handling the SVG rendering. Circles are color-coded by species—lightblue for setosa, lightgreen for versicolor, and orange for virginica—with a legend and axis labels updated every two seconds via `setInterval`. The code demonstrates local ES6 module imports and dynamic chart reconfiguration with smooth transitions.