This example presents an animated scatter plot of the Iris dataset, cycling through different feature pairs to reveal relationships among species. The visualization uses D3 v6 APIs including `scaleLinear`, `extent`, `axisLeft`, and `axisBottom` to map data to positions and render axes. A `setInterval` triggers updates every two seconds, switching the x-axis variable among petal width, sepal width, petal length, and sepal length while keeping sepal length on the y-axis. The chart renders as SVG with circles for each data point, adapting to the full window size.