This visualization uses the classic Iris dataset to show the correlation between sepal length, sepal width, and petal length. Each flower is represented as a bubble, positioned by its sepal measurements and sized by petal length, with color distinguishing the three species. The chart is rendered as an SVG using D3 v7, scaling positions with `d3.scaleLinear` and colors with `d3.scaleOrdinal` and `d3.schemeCategory10`. Interactive tooltips appear on hover, and a legend identifies species.