This scatter plot visualizes the Iris dataset, encoding sepal length on the x-axis and sepal width on the y-axis. Each species is distinguished through a unique shape—circles for setosa, squares for versicolor, and triangles for virginica—along with distinct fill colors. The visualization uses D3 v6 with SVG rendering, employing `d3.scaleLinear` for axes, `d3.axisLeft` and `d3.axisBottom` for tick marks, and `d3.symbol` to generate the species-specific shapes. Data is loaded asynchronously via `d3.csv` from a remote gist URL.