This bubble chart visualizes the relationship between sepal length, sepal width, and petal length across three flower species, with petal length encoded by bubble size and species indicated by color. Built with D3.js v7, it uses `d3.scaleLinear` for axes and bubble radius, `d3.scaleOrdinal` for species colors, and includes interactive tooltips on `mouseover`. Data comes from a CSV file with 15 flower samples. The chart displays an SVG with animated hover effects, a legend for petal length, and a black tooltip showing species on interaction.