This may sound weird, but HOW blind are yellow eyed Irkens? Are they unable to see anything at all, or is everything just really blurry for them? Dib's glasses correct problems with his vision so it might be similar
Dib: Blind Irkens?? Zim what are they talking about.
Zim: I was speculating that Don may be a Yellow Irken, since you have yellow eyes. Yellow eyed Irkens are born completely blind, they cannot see anything so they are exterminated immediately.
Dib: ..thatโs terrible...
Zim: Yes well, it is what it is. You are partially blind, you have those things on your face all the time, without them, youโre useless.
Dib: Geez, thanks Zim. Don could be blind then...He had googles on so maybe thatโs why.
Zim: That fact that he exists if he does have yellow eyes is evidence in itself that they have to be from another dimension.
Dib: why doesnโt your version of Irk just give them googles rather than killing them right away.
Zim: The control brain wants perfect Irkens, anything below that is a waste. What good is a blink Irken anyways?
Dib: I donโt know, seems harsh, your race is very extreme, Iโm really curious about what their dimension is like, it must be so different.
Zim: Yes, it must be. The Noah human gives off a strong Irken scent to me, you have given me a similar experience but his is much stronger.
Dib: By association with another Irken.
Zim: Mm, Irkens give off a scent afterall, humans do this very subtly in comparison. But when together a while, the Irkenโs scent will overcome the humans.
Dib: Uh...has this already happened between us? Is that like a marking of territory thing?
Zim: Of course itโs happened to us! Especially all that terrible clinging!! Itโs not a territory thing either, itโs just something that happens when an Irken is around another Irken, it means they are compatible which is a rare occurrence amongst us. An Irken has no qualms about killing another Irken, but if that Irken has a scent to them, we are less likely to kill them.
Dib: Oh? This scent protects them.
Zim: Yes, that is also why I have two Tallests, they are compatible, have always been so. I trained with them so I know.
Dib: You know your leaders that personally?
Zim: Yup! Weโre good pals! Anyways, the human is drenched in Irken aroma, that might explain the guardian thing a little more I think. They have a very close relationship.
Dib: How close do you think?
Dib:....how close are we now anyways, Iโm unsure to be honest.
Zim:....Ehh...Iโm not all that great at deciphering the exact degree by the scent but Iโd say weโre allies now.
Dib: Heh, yeah, that sounds about right.
Zim: of course it is right, I am always right!
Dib: Except when youโre wrong.
Zim: Never! I donโt know how to be wrong Dib-beast!
Dib: Hahah well you are definitely right about that.