This interactive scatter plot visualizes the Iris dataset, letting users compare measurements of sepal and petal dimensions across species. Dropdown menus dynamically change the x- and y-axis variables, and points (drawn as SVG circles) animate smoothly to their new positions via `d3.transition` with staggered delays. The chart is built with a reusable `scatterPlot` component that leverages `d3.scaleLinear`, `d3.extent`, and `d3.axisLeft`/`d3.axisBottom` for axes. Data is loaded from a remote CSV using `d3.csv`, and the scene adapts to the browser window size.