This scatter plot visualizes the Iris dataset, mapping petal length and petal width on the axes while coloring points by species. The chart uses D3 v6 with SVG rendering, loading CSV data via `d3.csv` and parsing numeric values. Scales are created with `d3.scaleLinear` and axes with `d3.axisLeft` and `d3.axisBottom`. Circles are drawn with `d3.selectAll` and a data join, with fill colors assigned per species via a switch function. Axis labels are added as SVG text elements.