I can see that Joshua pretty well shredded the original thread…
“2 posts from column A… 3 posts from column B, etc, etc…”
So here is the ORIGINAL POST I used to debut the idea that there really is no barrier between micro- and macro- Evolution.
Three different “kinds” in Australia have been determined to be unusually closely related… by GENETIC similarities rather than physical ones!
They evolved separately, during the Marsupial Diaspora in Australia, from a single common population of generalized marsupials… and we’re lucky enough that no placental mammals found their way to Australia before the land MASS drifted out into the ocean!