So, gradual change in species caused by survival of the fittest is proven.
Cladking, you apparently know nothing of scientific method, the relevant facts or how to evaluate facts.
How many thousands of times in threads like these have we tried to explain how science works, what a fact is, what a theory is, and that science doesn't prove anything? The round earth theory is a fact -- but it's not proven. The germ theory is a fact -- but not proven. The evolution theory is a fact -- but not proven. Science can disprove, but it doesn't prove.
If you're so ignorant of what science is and how it works, what a fact is, and what evidence, you're not even qualified to hold an opinion on this subject.
It always seems like Evolution is established fact until anyone dares to question what an established fact is.
Please explain what you mean. What is an "established fact?" How do evolution and the theory of evolution not qualify.
I'll give you a clue; established fact is not really "tentative".
And all scientists agree. They also agree that the ToE is not tentative. It's a fact.
Are you imagining that a fact cannot be clarified and modified as new information is discovered?
I'll give you another clue, even observation can be performed incorrectly.
Exactly! Which is why scientific hypotheses are so rigorously criticized, tested, and submitted for peer review before being accepted.
Despite the title of this thread no experiment has ever shown a gradual change in species caused by survival of the fittest. All observed change is sudden.
You've made this claim before, and it's just factually wrong. You're either totally ignorant of the facts, or obtuse in the extreme.
Anything imagined from the fossil record is hypothesis or not science at all.