This pie chart displays the distribution of animal species by count, with each slice labeled with its value in thousands and accompanied by a legend. The visualization fetches data from a GitHub-hosted CSV file using `d3.csv`, then constructs the chart with `d3.pie` and `d3.arc` for the segments, while `d3.scaleOrdinal` assigns colors. Value labels are formatted via `d3.format` and positioned using `arc.centroid`. The D3 v5 code renders to an SVG canvas and includes styled legend rects and text elements.