This animated scatter plot cycles through different pairings of the Iris flower dataset's four measurements (petal width, sepal width, petal length, sepal length) on the x-axis while sepal length is used for the y-axis. Points are colored by species (setosa, versicolor, virginica) with a custom legend. The visualization uses D3 v6 APIs such as `csv`, `scaleLinear`, `axisBottom`, and `axisLeft` within a reusable `scatterPlot` module, updating axes and circles via `setInterval`. Data is loaded from a raw GitHub CSV URL, and styling is applied with CSS.