This scatter plot visualizes penguin species by mapping culmen length and depth to the x- and y-axes. Each species is distinguished by a unique symbol shape and color, with data loaded from a CSV file and rendered as SVG paths. The visualization uses d3.scaleLinear for axes, d3.symbol for shapes, and a custom shapeLegend function to display the species key. Axis labels and ticks are generated with d3.axisBottom and d3.axisLeft, while data cleaning removes entries with missing or invalid measurements.