Two 3D scatter plots render inside a single Plotly.js chart on a web page. The first trace plots bill length, bill depth, and flipper length from a remote CSV loaded with `d3.csv`, styling markers with semi-transparent gray lines. The second trace plots flipper length, body mass, and sex, using solid gray circles with darker borders. The `scatter3d` trace type and `Plotly.newPlot` API generate the interactive three-dimensional visualization, with margins collapsed to zero via the layout object.