DAVID: Why drag Darwin's late comment in later editions into this thread? I was simply pointing out new evidence that the pyramid of life may have more than one top.

dhw: I thought you were pointing out that it may have had more than one bottom (as I thought you thought that humans were the top) – but why did you drag that, with double exclamation marks, into an article advising scepticism towards all the different scientific theories? I was merely responding to your (irrelevant) remark that recent discoveries suggested more than one original form of life, to show that it is NOT a recent discovery. Let’s drop it.

Dropped. Yes, humans are the pinnacle of creation, but at a huge bottom of a bush of life, starting at a small point/points 3.8 billion years ago.