This is an interesting question. I think I know the answer to this: Carl Linnaeus. He was the first scientist to realize that he could not establlish any system of biological classification that did not include humans in the taxon of apes.
There are no 'creationist theories' in the scientific sense. Creationist beliefs and scientific findings cannot be considered equivalent.
Jean Lamark was the scientist that first described evolution as a process of adaptation.
Herbert Spencer
Darwin is the most famous one and he proposed the Theory of Evolution.
Charles Darwin
No. This is a creationist canard.
Rich Deem is not a scientist. He is a creationist propagandist with a website and a keyboard.
No. Creationist do not believe in evolution.
There are no 'creationist theories' in the scientific sense. Creationist beliefs and scientific findings cannot be considered equivalent.
No one has to believe in evolution. Evolution vs creation doesn't really affect our everyday lives that much. We're still ourselves, whether we were created or evolved. It'd be helpful to believe in evolution if you're a scientist in biology and/or archaeology. Some jobs wouldn't make much sense from a creationist perspective.
Creationist
The cast of Incredible Creatures That Defy Evolution - 2000 includes: Jobe Martin as Himself - Creationist
Creationist failed to reverse state laws that furthered the expansion of the teaching of evolution. The battle between creationist and evolutionist wages in statewide debate over education curriculum, today.
They don't! Abiogenisis is not part of evolution as you need already living organisms to evolve. This is a common creationist misunderstanding of evolution and evolutionary theory
Jean Lamark was the scientist that first described evolution as a process of adaptation.
Darwin
Organic evolution.