A parallel coordinates plot displays the four numerical measurements (sepal length, sepal width, petal length, petal width) from the Iris dataset, with each of the 150 flowers represented as a polyline connecting its values across four vertical axes. Lines are colored by species—red for Iris-setosa, blue for Iris-versicolor, and green for Iris-virginica—with a legend shown to the right. The visualization uses D3.js v7, specifically `d3.scalePoint`, `d3.scaleLinear`, and `d3.axisLeft`, to render the axes and paths as SVG elements. A fixed y-domain of 0–8 is applied across all dimensions.