This scatter plot visualizes the Iris dataset, comparing sepal length and sepal width across three species (setosa, versicolor, and virginica) using a BBC-style color palette. Each species is represented as a distinct colored circle, with the points colored via CSS classes defined in the stylesheet. The visualization uses D3 v7 to load CSV data, create linear scales with `d3.scaleLinear`, and render axes with `d3.axisBottom` and `d3.axisLeft`, while a custom `renderLegend` function provides interactive hover highlighting that fades non-hovered species to 20% opacity.