This interactive scatter plot visualizes the Iris dataset, displaying sepal length against petal length with points colored by species. Built with D3 v7, it uses d3.scaleLinear for axes, d3.scaleOrdinal with d3.symbolsFill to map species to distinct shapes, and d3.axisLeft/axisBottom for tick marks. A custom legend, rendered using d3.symbol, identifies each species. Data loads asynchronously from a CSV file and is parsed with d3.csvParse, with the chart resizing to fill the viewport.