This chart shows the distribution of Iris species in a pie chart, displaying each species with its count. The visualization is built with D3.js (v6.7.0) using the `d3.pie` and `d3.arc` layouts, with slices filled using `d3.scaleOrdinal` and `d3.schemeCategory10`. The SVG paths are generated server-side and rendered as inline SVG elements. Data comes from a remote CSV file loaded via `d3.csv` from the author's GitHub repository, and species frequencies are computed with `d3.rollup`. Hovering highlights slices via CSS transforms.