I am afraid I found that a bit obscure, Pete. It seems you agree that my example demonstrates natural selection. I am not clear if you also agree it demonstrates evolution. That's important. all natural selection says is that, for example, slower animals are more likely to be caught. Evolution says that natural selection leads to change.

Now, in an earlier post you said my example demonstrated tec evolution. So we seem tou have reached the point where you agree using Darwin's rules gives evolution by natural selection, if only in this example. If you still don't agree you have to withdraw or clarify one of your earlier posts, I think.