I always get conflicting answers regarding the theory of evolution and Judaism. Could you clarify?
If you are getting conflicting answers, that’s most likely because you are asking Jews. Like they say, for every two Jews there are three opinions. That’s just part of Jewishness.
But now you’re asking me, so I’ll provide my opinion. And that is that evolution and Torah are two distinct paradigms. Evolution is an attempt to explain life in purely materialistic terms. Things happen out of chance and necessity. Torah, on the other hand, tells us that a singular, deliberate and intelligent force is to be found in all things and all events.
Or, put it this way: Evolution and Genesis both agree that human intelligence began as a hunk of mud. Evolution says that if you leave enough mud alone for long enough, it will eventually—through chance events and natural selection—become a human being who will build computers and spaceships. Genesis says that intelligence arises from a greater intelligence.
Or to simplify it even further: Evolution says the background of the universe is dumb matter, and intelligence is an accident. Genesis places intelligence at the core of the universe, and says that dumb matter is an illusion.
One step simpler: Evolution says that a dumb universe can create intelligent beings. Genesis says that an intelligent universe may sometimes look dumb, until you look deeper.
Mixing these two together is then an exttreme form of syncretism.
While I'm at it, please allow me to point out that "natural" and "selection" are mutually incompatible terms. Natural implies blind necessity dictated by the consistent patterns of nature. Selection implies intelligence. I won't be the first to point out that this term is an oxymoron. What I propose, however, is that the choice of such a term indicates that scientists subliminally recognize that there must be an intelligence at work here. Which is my point: It's much more intuitive to believe that the primal substance of the universe is not matter, but intelligence.
On the other hand, I’m not ready to believe that creationism is science. How it was, precisely, that a super-cosmic intelligence extruded all these beings from the primordial mud is something still beyond our science. Perhaps one day we will have theories that can explain some of this to us in terms we can grasp. Or perhaps not. At present, however, materialistic evolution is sorely deficient at explaining anything at all.
In fairness to your question, I should add that there have been those who have attempted to align Judaism and evolution, some of them quite respectable Torah scholars. None of them, however, have managed to make a plausible reading out of Genesis with their theories. Their error stems from the belief that evolution has been somehow scientifically proven. This is simply not the case. While Darwin’s theories and their modern counterparts may have proven a useful paradigm for certain studies, they cannot at all stand the rigor through which a theory must be put in the academic world in order to be accepted as “proven.” Their sole claim to acceptance is the human mind’s endemic fear of saying, “We don’t understand.”
There’s lots written on our site on this topic. Here is one useful article, written by an environmental scientist.