I recall on another venue someone using the fact that in all the time we have been using bacteria and fungi for fermentation we have not observed speciation in those microorganisms. This was offered as evidence against theory of evolution.
Is it?
There is no evidence that ancient cultures making fermented milk products, bread, or beer had any idea what was causing the changes or that there were living things even involved. They were not only not looking, they were unaware of much of what was happening. Species could have evolved or not.
When microorganisms were discovered, no one had any idea of the species that existed, so anything new, even under the nose of the observer, wouldn't have been recognized for what it was. All those species were new to man and until we looked, undescribed. Many remain undescribed. An undescribed species is one new to us, but not necessarily or probably one new to the world. It could be. Maybe not. There is no information to know specifically under those historic circumstances.
Once we described some of them, recognized the role some of them had relating to us--food, pathogenesis, soil production, etc.--and started culturing them, I still do not see a feasible opportunity to know that speciation was occurring. Historically, scientists culturing bacteria, for instance, were doing so for some other purpose and such changes would go unnoticed for much the same reasons as before. No one was looking for these changes and any different species in what was intended as pure cultures could be just contamination.
Only recently--the last 70 years perhaps--have we started looking at this with the intent to discover actual speciation events in a human time frame.
Given that some of the same issues apply to macro-scale life on this planet that they do for microorganisms, much that may have happened probably did unnoticed.
So, it seems that claiming a lack of observed speciation on a human history scale is not good evidence against the theory.
I could go on, but the question remains. How do we know or not whether a species is new to us or new to the world?
DNA is the blueprint which tells all. There was a scientist who wanted to discover where mankind started on earth. This is how he figured it out: DNA randomly mutates. The oldest lines will have the greatest number of these deviations simply because the process has been running longer. This is how you tell when the lines start to branch off.
The scientist discovered mankind first started in Africa, then wandered to Australia, the aborigines. From there it went through Asia, then up and branched going to America then Europe and back down.
Granted, there is much still unknown about DNA. The knowledge that is packed in it is amazing.
We are all Spiritual Beings in our true natures. WE are placed in our physical bodies after birth when long term memories become possible.
Many people get all upset thinking they have evolved from a lower life form. Since we are Spiritual Beings, does it really matter how our physical bodies were made? If it does, it is only your EGO working.
One might want to think one is better than animals, however animals are children of God as we are. We just have more capabilities because we have been on our journey a bit longer.
I say let's let our beliefs go and work at Discovering what actually exists. Genius exists, being able to create it all from a single point. Just like a seed can grow into a giant tree, the universe expands into what we have today and beyond.
God hides nothing. God made the universe in such a way that mankind will be able to understand it all given enough time in study.
I say let's forget about all the beliefs and trying to make reality what we want it to be. Let's Discover what Actually exists then move forward. One is going to find that True Reality will end up so much better than all those beliefs one might want to be the truth.
Beliefs do not matter for we are all going to run into God in the end anyway!! Though we can choose a bumpy road for ourselves, it's going to be Glorious when the journey is done.
That's what I see. It's very clear!!