This example visualizes the Palmer Penguins dataset with a D3 scatter plot, showing each penguin’s flipper length on the y-axis while the x-axis cycles through bill length, bill depth, and body mass every two seconds. Built as a reusable `scatterPlot` module, it relies on D3’s `scaleLinear`, `axisLeft`, `axisBottom`, and `csv` utilities. Points are drawn as SVG circles, animated via `setInterval`, with axes updating dynamically.