This interactive scatter plot uses the D3.js library (v7) to visualize the classic Iris dataset, fetched from a remote TSV file. The visualization maps sepal length to the x-axis and petal length to the y-axis, with the iris species encoded using different shapes via `d3.symbol` and a shape legend. It employs D3's `scaleLinear` and `scaleOrdinal` for scaling, and utilizes `d3.axisLeft` and `d3.axisBottom` to render the axes with labels.