Taser I really have no clue how morality would exist if not for religion. I'm assuming people who are raised by non-religious parents are taught morality. I think it's part nature and nurture. People have guilt when they do something wrong. We weren't taught about life/death as young kids, and the first time my brother killed a duck with a rock we felt fucking horrible and miserable to have witnessed such a terrible act. I think as you age and become more mature, you are able to discern right from wrong.
I think it's a pretty much black and white thing (right vs wrong) in some circumstances. If it doesn't effect anyone else, and isn't harming anyone else, than you're good to go. Once you start affecting other people, is where the grey area comes into effect.
I don't know the word for it, but there's a philosophy about passing your genes on, where you will risk your life for the protection of your kin (or otherwise people who are close to your genetic makeup) in order to have the genome passed on.
I think religion was important for helping people become more civilized, but I think that it's usefulness in the 21st century is not as important. If you want to believe in fairy tales, that's your choice, but it shouldn't be used to dictate what other people can and cannot do.
I feel like a walking contradiction in this post, because I want to also state that "morality" laws are fucking dumb and should be abolished (at least the ones where nobody is hurt or affected negatively, except the people choosing to participate). So maybe "morals" and "morality" is a vague term.