How do we tell right from wrong?

Evolution is not a moral guide - it's a scientific theory. It makes no statements regarding right and wrong, it's simply a model describing the continued and past diversification of life on Earth.Let me as you this:"If gravity is true, how do we tell right from wrong?""If general relativity is true, how do we tell right from wrong?"The answer of course is that scientific theories are not moral guides at all. Evolution, gravity, and general relativity are all irrelevant to human morality.You can continue to derive your moral code from wherever you have been getting it thus far, be that a secular, nonreligious code of ethics, the Bible, the Torah, the Koran, or whatever your parents told you when you were growing up.Of course, if you're concerned that evolution disproves your religious beliefs, and that's the current source of your moral compass, don't worry - you aren't likely to become a hedonist or nihilist. Most people's religious faith survives acceptance of evolution, and even for those who lose their faith, there are sources of morality outside of religion, After all, do Atheists in general go on homicidal rampages? Certainly not, so clearly they must have a functioning moral compass without religion dictating it to them.So to answer your question: The same way you have been all this time. Evolution's veracity is irrelevant to morality.