An interactive scatter plot of the Iris flower dataset, colored by species, allows users to explore relationships between four flower measurements. The visualization uses D3 v5 to render an SVG chart with selectable X and Y axes, dynamically updating the plot when the user changes the dropdown menus for sepal and petal dimensions. The data is loaded from a local CSV file using `d3.csv`, and the chart is drawn with `d3.axisBottom`, `d3.axisLeft`, and `d3.scaleLinear`, applying species-specific colors and translucent points.