This scatter plot visualizes the Iris dataset, displaying petal length against petal width while coloring each point by species (setosa, versicolor, or virginica). The visualization uses D3.js v6 with SVG rendering, employing `scaleLinear` for both axes and `axisLeft`/`axisBottom` for tick marks. Circle elements are positioned using the `x` and `y` scales, with species-based fill colors. The data loads from a remote CSV file via `d3.csv`, and the chart fills the entire browser window with custom margins and rotated axis labels.