I was just wondering about the relevance of “second oldest” and thought I would ask you. I did get an answer. Thanks, though.
The example I cited is far, far older than the one this article is based on.
I think (and there I go thinking again...) the "second oldest" the author meant was the second oldest in humans all the mutations, sections an genetic fine tuning that lead up to "human" doesn't count, at least in his mind.
Glad you got a satisfactory answer, and I think I just might owe you an apology for for assuming you were one of those people!