"My Friend, The Alien (Part 4 of 7)" KID Oh yeah - we can't see the air. But we do need it to breathe. ZLORTLAX Why do you need to breathe? KID Well, we use oxygen to metabolize glucose into usable energy. ZLORTLAX I guess that makes sense. KID If you don't breathe, what's that thing for? ZLORTLAX You don't want to know. KID I'm confused. You studied English until you could speak it fluently, but you don't even know that we need air to breathe? KID It seems like you should know more about human anatomy. ZLORTLAX I probably would if I hadn't spent the last two months learning to speak English. KID I guess that makes sense.