I'm not sure what you mean about DNA growing and improving on its own apart from the creature that uses it, but uh... You're actually rather wrong about things not being expected. Abiogenesis, for example. The concept that inorganic matter can become organic matter [basically non-living material becoming living material]. The most common crux of the "AHA, THE FOUNDATION OF EVOLUTION IS FLAWED" argument the creationists typically dredge up, was proven to actually happen under controlled laboratory environment testing. Now with that piece of the puzzle on the board we now have to determine when/if Earth ever was in such a state, though it's not very far-fetched to say it would be.
As for scientists becoming very bull-headed about certain theories, that's hardly surprising at all; science has become a bit of a celebrated thing, and to be shown you are wrong can be very damaging to one's ego. Christians, I am sure, are used to that, given how even to this day they continue to have to be dragged kicking and screaming into accepting evolution as fact; it must be very galling to the collective Christian ego to have to admit that the story of genesis makes absolutely no sense regardless if it's taken literally or metaphorically, even though they've claimed it to be literal fact since damn-near Day One.
Christians complaining about scientists being stubborn...heehee.
As for scientists becoming very bull-headed about certain theories, that's hardly surprising at all; science has become a bit of a celebrated thing, and to be shown you are wrong can be very damaging to one's ego. Christians, I am sure, are used to that, given how even to this day they continue to have to be dragged kicking and screaming into accepting evolution as fact; it must be very galling to the collective Christian ego to have to admit that the story of genesis makes absolutely no sense regardless if it's taken literally or metaphorically, even though they've claimed it to be literal fact since damn-near Day One.
Christians complaining about scientists being stubborn...heehee.