Secular Frummy,
I have not been disputing that a animals have evolved. The issue is by what mechanism have they evolved. I don’t think that Neo-Darwinian mechanisms are capable of achieving the changes we see in the fossil record or in the diversity of life around us.
Agav, I think the conventional theory is that Marsupials migrated to Australia, not that they arose in Australia. The issue is only why they thrived in Australia and died out everywhere else.