This scatter plot visualizes the Iris dataset, mapping sepal length against petal length and using distinct shapes to represent different iris species. The visualization loads data from a CSV file and displays it using D3 v7, leveraging the `scaleLinear` and `scaleOrdinal` scales to map data values to plot coordinates and shape encodings. Custom axis and legend modules render labeled axes and a shape legend, while the `symbol` API generates the species-specific markers. The plot dynamically fetches and parses the data via `csvParse`, updating the display once the dataset arrives.