This was what Darwin was trying so hard to get his readers to see: that there is never just one way of ranking nature’s organisms. To get stuck on a single hierarchy is to miss the bigger picture, the messy truth of nature, the “whole machinery of life.” The work of good science is to try to peer beyond the “convenient” lines we draw over nature. To peer beyond intuition, where something wilder lives. To know that in every organism at which you gaze, there is complexity you will never comprehend.
