This scatter plot visualizes the Iris dataset, displaying petal length against petal width for three flower species. Each circle is color-coded by species using a d3.scaleOrdinal, with axis labels indicating measurements in centimeters. The visualization leverages d3.csv for data loading, d3.axisBottom and d3.axisLeft for axes, and interactive mouseover events that enlarge points and reveal a tooltip with species details. A legend identifies the color mapping for Iris-setosa, Iris-versicolor, and Iris-virginica.