This animated scatter plot visualizes the Iris dataset, mapping petal and sepal measurements across four dimensions. The chart cycles through different variable pairings every two seconds, dynamically updating the x-axis while points shift and recolor by species (green, yellow, red). The reusable chart pattern from Bostock’s “Towards Reusable Charts” uses d3.scaleLinear, axisBottom, axisLeft, and SVG circles. Data loads via d3.csv from a GitHub gist, with viewport-sized rendering and custom label annotations.