This animated scatterplot cycles through four feature combinations from the Iris dataset, showing sepal and petal measurements for three flower species. D3’s `scaleLinear`, `axisLeft`, and `axisBottom` handle the axes, while a `setInterval` drives the rotating x-axis variable. Circles are colored by species via a custom `marker` function. The SVG output redundantly draws a legend and labels, with a violet title and italic axis text, all built using the `scatterPlot` module.