This interactive bubble chart visualizes the Iris dataset, plotting sepal length against sepal width for three flower species. Circle size encodes petal length, while color distinguishes species. Built with D3.js v7, the SVG visualization includes hover tooltips displaying specimen details and a categorical legend. The chart uses linear scales with `d3.scaleLinear` for axes and bubble sizing, plus an ordinal color scale for species grouping. Data is loaded asynchronously via `d3.csv` from the iris.csv file.