This animated scatter plot visualizes bird measurements, cycling through tail length, beak length, beak width, and wingspan as the x-axis variable against wingspan on the y-axis. Data is loaded from a CSV file using D3’s `csv` function, while the reusable `scatterPlot` module builds scales with `scaleLinear`, axes via `axisLeft` and `axisBottom`, and updates circles every two seconds with `setInterval`. The visualization resizes to the full viewport and uses SVG rendering.