This example visualizes the Iris dataset as an animated scatter plot that cycles through different feature pairs every two seconds, with species encoded by distinct symbol shapes. Built with React and D3, it uses `d3.csv` for data loading, `scaleLinear` for axes, `scaleOrdinal` for symbol mapping, and `symbol` generators for rendering SVG paths. CSS transitions animate point movement between updates, while `axisBottom` and `axisLeft` render the changing scales.