This bubble chart displays the correlation between sepal length, sepal width, and petal length for three iris species, using the classic Iris dataset. Bubble position encodes sepal length and width, while bubble radius represents petal length and color distinguishes species. The visualization uses D3.js with SVG rendering, employing `d3.scaleLinear` for axes and bubble sizing, `d3.scaleOrdinal` with the `interpolateTurbo` color scheme for species, and `d3.axisBottom` and `d3.axisLeft` for axes. Interactive tooltips appear on mouseover, showing species and petal length using `d3.select` and transition effects.