This visualization presents the classic Iris dataset as an animated scatter plot, cycling through different sepal and petal measurements on the x-axis while petal width remains on the y-axis. Points are colored by species—red for setosa, cyan for versicolor, and grey for virginica—with a manual legend and rotating axes labels. Built with D3 v6, the example uses `scaleLinear`, `axisLeft`, and `axisBottom` from the reusable `scatterPlot` module, with `csv` loading and `setInterval` driving the animation.