The term "little green men" often pops up in stories and discussions on flying saucers and unidentified flying objects(ufos). But, what is the story here? In the book, BEHIND THE FLYING SAUCERS, BY Frank Scully, published in 1950, the book talks about little men in crashed flying saucers, but NEVER talks about such men as being green. In the book, all the flying saucer men are found dead. Yet, the term "little green men" was very much associated with flying saucers in the 1940's, 1950's, and 1960's. Here is a theorical explanation: while the vast majority of crashed flying saucer cases deal with aliens who quickly died from the crashes, there could have been a few aliens who survived the agonizing crash for a certain long lapse of time, maybe days. These aliens could very well have acquired gangrene from their massive injuries as well as being basically paralyzed or crippled. Gangrene is the death of tissue in part of the body(necrosis) and a lack of blood circulation there. Gangrene can be seen on the skin of the sufferer. Even though gangrene can appear in various colors, as purpish, yellowish red, black red, yellowish brown; gangrene can appear to be a blackish green color with light green showing. There are color pictures; photographs of gangrene on the human body that can be seen on the internet. Some photographs, for example, show people with legs of a strong greenish color.