User blog comment:Lord Loss/Monster Hunter Theory... Blog/@comment-5638823-20130105094608/@comment-4563270-20130105192712

actually if it were copper it would be a greenish color. blood is red because the oxidation of iron is red same as how the oxidation of copper is green.. although on the flipside blood without oxygen is blue so i imagine without oxygen copper blood is a brownish/red color... but of course when any blood hits the air it turns to an oxidized color.