Evolution

Basically, it's how creatures, and plants were made a billion years ago, and how they changed (evolved). According to most Christan's, this is 'just a theory', as they like to believe that God did it. All of it. And that science is wrong. That's like saying "Oh, gravity's just your wacky, blasphemous theory." Jesus Christ, people! This isn't the 1600's any more. We have highly educated, trained, and intelligent people spending billions of dollars to tell you how bugs have changed in the last million years. It's called fucking science, and science (sigh-ents) is what us normal, non-God fearing people accept as real. Even the fucking Taliban accept science to some level. Chemistry, and physics goes into that bomb making.