Altough we are more close related to chimpanzees than orangotangs
The Theory of Evolution is still a Theory.
Well founded and proved with hundreds of real world cases and dozens of transition fossils.
As also still are theories the Theory of Gravitation, and the Theory of the Colours (tip: search Newton).
I get chills down my spine when people try to pass up mythology for science... Yeah, I'm talking of you right-wing christian fanatic nut jobs!
Even the Vatican as agreed and accepted evolution as a proven fact, by the great Pope John Paul II in 1996.
"Everyone is entitled to their own opinion, but not their own facts."
Daniel Patrick Moynihan