This visualization shows the classic Iris dataset as a scatter plot, mapping petal length and width for three flower species colored blue, red, and black. The code uses D3 v6 APIs including `csv`, `scaleLinear`, `extent`, `axisLeft`, `axisBottom`, and `select`. It loads the dataset from a GitHub gist URL, parses numeric fields, and renders circles as SVG elements sized by sepal measurements. The axes display species separation, with circle positions computed via linear scales that map data values to pixel coordinates across the full window dimensions.