This scatter plot displays the relationship between sepal length and petal length for iris flowers, with species indicated through distinct symbol shapes. The visualization uses D3 v7 APIs including `scaleLinear`, `scaleOrdinal`, `symbolsFill`, and `symbol()` to map data values to positions and shapes. It features axes with labels via `axisLeft` and `axisBottom`, plus a custom shape legend positioned within the chart. Data is loaded from a CSV file hosted on GitHub, parsed with `csvParse`, and rendered using SVG paths generated by D3's symbol generator.