This stacked bar chart displays animal categories across four quantitative segments (A, B, C, D), with each bar colored by a group such as Domestic, Pest, Africa, or Marine. The visualization uses D3 v5 with SVG rendering to create horizontal stacked bars, where the length of each segment corresponds to its value. The code employs d3.stack(), d3.scaleBand(), d3.scaleLinear(), and d3.scaleOrdinal() to process the CSV data and assign differential shading based on animal group membership, producing a color-coded breakdown of totals across species.