This scatter plot visualizes the Iris dataset, comparing sepal length and sepal width across three species. Points are colored by species, with hover interactions on the legend fading non-matching points. The visualization is built with D3 v7, using `scaleLinear`, `scaleOrdinal`, `axisBottom`, and `axisLeft` APIs. Data is loaded via `d3.csv` from a remote CSV file, and the chart includes a title, subtitle, axis labels, and a source attribution.