This reusable scatter plot visualizes the Iris flower dataset, encoding sepal length against petal width while distinguishing species by symbol shape and color—diamonds for virginica, pluses for versicolor, and dots for setosa. Built as a reusable D3 chart following Mike Bostock’s pattern, it uses `d3.scaleLinear` for axes, `d3.scaleOrdinal` with `d3.symbol` for markers, and `d3.axisLeft`/`d3.axisBottom`. An animation cycles the x-axis through all four numeric variables every 10 seconds via `setInterval`.