that birds descended from early reptiles,
***Well, there’s the fascinating DNA experiments that have been going on.
Protein extracted from 68 million-year-old T. rex bones has shed new light on the evolutionary link between dinosaurs and birds.
http://www.freerepublic.com/focus/f-news/1816370/posts
That's interesting and all, but like other research on both sides of the question it doesn't "prove" anything about the past using the scientific method. You can certainly argue that it supports one side or the other of the debate, but such arguments are not the same thing as the scientific method and are therefore philosophy - or perhaps history - but they're not science. And that applies to both sides, as I see it. Again, where am I wrong?