This scatterplot displays iris flower measurements, plotting sepal length against petal length for three species. The visualization uses distinct D3 symbol types (circles, crosses, diamonds) to differentiate species, with a custom shape legend explaining the mapping. Data is loaded asynchronously from a remote CSV file and parsed using d3.csvParse. The chart is built with D3 v7, using scaleLinear for axes and scaleOrdinal with symbolsFill for shape encoding.