This interactive scatter plot shows the relationship between sepal length and petal length for three iris species, with data loaded from a remote CSV file. The visualization uses `d3.scaleLinear` and `d3.scaleOrdinal` to map numeric and categorical fields, while custom axes and a shape legend are built with `d3.axisLeft`, `d3.axisBottom`, and `d3.symbol`. Points render as D3 path marks with shapes determined by species, and the plot responds to window resizing.