This scatter plot visualizes the Iris dataset, mapping sepal length on the x-axis and petal length on the y-axis, with data points colored by species. The chart uses D3’s `scaleLinear` to position the marks and `scaleOrdinal` with `schemeCategory10` to assign distinct colors. A custom legend indicates species, with full axes drawn via `axisBottom` and `axisLeft`. Data is loaded from a remote CSV and parsed with `csvParse`. Hovering over a point increases its opacity and stroke width.