- Dr. Rodney McKay: What?
- Boy: Is it true? You're going to hunt the Deimos?
- Dr. Rodney McKay: It looks that way.
- Boy: I heard it has two heads, and can turn you to stone just by looking at you!
- Dr. Rodney McKay: Well, you heard wrong.
- Boy: My uncle says it'll come and take me if I don't do my chores.
- Dr. Rodney McKay: He said that, huh? Well then, if we get rid of it, you've got nothing to worry about. You'll never have to do chores ever again.
- Boy: Really?
- Dr. Rodney McKay: Yes. Look... go away!
- Dr. Carson Beckett: Right now, our best guess is that the Wraith evolved from the iratus bug.
- Lt. Colonel John Sheppard: Like the one that attached itself to my neck a year ago?
- Dr. Carson Beckett: That's right.
- Lt. Colonel John Sheppard: I hate those bugs.
- Dr. Carson Beckett: Trust me, I know. We've speculated that they evolved into the Wraith when they began to take on the characteristics of the humans they were feeding on. Now, there are many aspects of human physiology that are quite useful-bipedal motion, opposable thumbs, large brain capacity. But the human digestive system serves no purpose in the adult Wraith. So, why have one at all?
- Dr. Elizabeth Weir: Because they eat normal food when they're young.
- Dr. Carson Beckett: Exactly then at some point, they lose the ability to sustain themselves with that food.
- Lt. Colonel John Sheppard: So it's a teenage thing. Pimples, rebellion, life sucking.
- Lt. Colonel John Sheppard: All right, let's go. McKay, stay here and help Beckett.
- Dr. Rodney McKay: Uh, medical research is not really my thing.
- Lt. Colonel John Sheppard: And hunting Wraith?
- Dr. Rodney McKay: But, I mean, I can stay... and help Beckett.