This interactive scatter plot visualizes the Iris dataset, showing petal width against sepal length with points colored by species. Built with D3 v6, the visualization cycles through different variable pairings every two seconds using a reusable chart pattern. The SVG marks use the `d3.scaleLinear` and `d3.scaleOrdinal` APIs, with axes generated by `axisBottom` and `axisLeft`. A legend identifies the three species, while a `setInterval` loop updates the x and y value functions to animate through the dataset’s four numeric columns.