Blacknad. I'll take the liberty of paraphrasing some of your comments.

"Some die out - some remain - and new versions of it arise." What is evolution then? "There is, however, no linear progression." Nor is there in biological evolution. "In the main, different subspecies share the same core genes and it is often in the detail that things differ." No comment necessary. "There are certainly not as many varieties of species as there are individuals." Evolution?