Such evolutionary developments require millions of years. Modern science has only existed for a few hundred. The question is thus absurd. It's like asking us to repeat the production of the Grand Canyon to confirm it resulted from river-basin erosion over the course of ten million years. We don't have to do that. The evidence is already conclusive that that's how the Grand Canyon formed. So, too, the development of phyla, classes, and orders. The evidence for the evolution of all phyla from a common ancestor is far stronger than the evidence even for the Big Bang, which we also didn't observe directly, but conclusively infer from abundant surviving evidence.
Can you provide an example of phylum to phylum or class to class or even order to order evolution that has been observed and repeated?
The Atheist Perspective
How does your particular faith conceive of vegetarianism and why?
Answers: Atheist, Christian
Does Matthew 23:37 say that we have free will?
Why does God allow charlatans to use His name to extract money, sex, attention and even their very lives from devout believers, who truly, honestly believe that they are listening to the word of God?
Is what is morally good commanded by God because it is morally good, or is it morally good because it is commanded by God?
Do you think atheists go to hell, why or why not?
Atheist Atheism: A Philosophical Justification Michael Martin Atheist The End of Faith: Religion, Terror, and the Future of Reason Sam Harris Atheist Sense and Goodness Without God: A Defense of Metaphysical Naturalism Richard Carrier Atheist The God Delusion Richard Dawkins Atheist Humanism: A Very Short Introduction Stephen Law Atheist Why I Am Not a Christian: Four Conclusive Reasons to Reject the Faith Richard Carrier Atheist Not the Impossible Faith Richard Carrier Atheist God Is Not Great: How Religion Poisons Everything Christopher Hitchens