*sighs* yes, I know that Mitth. The blood that has no oxygen is blue, that's why our veins are. Just about everyone asked that when they were young and got the answer. It was an example, not an actual question. I was just commenting it on being a good book- I'm sure some of our older faces have read it or another book similar to it, "When do fish sleep?" and "Who put the butter in butterfly?", or more recently "Why do men have nipples?" (If you don't know that one you aren't allowed to call yourself a man anymore... Come to think of it, if you do know that one then you can't, either...